Merge inbound to mozilla-central. a=merge
authorarthur.iakab <aiakab@mozilla.com>
Wed, 04 Sep 2019 00:55:31 +0300
changeset 491552 fd891e83a7cd54038b0bcebb3ab85b6818e2550e
parent 491551 6a6153cb19e964a099f4d1fb776ff939e2b4dfb2 (current diff)
parent 491415 6991e385b04548242affbbb192db73008944aa38 (diff)
child 491553 af88fb205656bf49c0093eabc9a1cf1f498f5846
child 491593 f99f4712363a06d81040755d97af21462480a089
push id114024
push useraiakab@mozilla.com
push dateTue, 03 Sep 2019 22:03:37 +0000
treeherdermozilla-inbound@fd891e83a7cd [default view] [failures only]
perfherder[talos] [build metrics] [platform microbench] (compared to previous push)
reviewersmerge
milestone71.0a1
first release with
nightly linux32
fd891e83a7cd / 71.0a1 / 20190903215623 / files
nightly linux64
fd891e83a7cd / 71.0a1 / 20190903215623 / files
nightly mac
fd891e83a7cd / 71.0a1 / 20190903215623 / files
nightly win32
fd891e83a7cd / 71.0a1 / 20190903215623 / files
nightly win64
fd891e83a7cd / 71.0a1 / 20190903215623 / files
last release without
nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
releases
nightly linux32
nightly linux64
nightly mac
nightly win32
nightly win64
Merge inbound to mozilla-central. a=merge
testing/web-platform/meta/BackgroundSync/interfaces.https.any.js.ini
testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-nested-cross-in-same-star-allow.html.ini
testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-nested-cross-in-same-url-allow.html.ini
testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-nested-cross-in-sandboxed-cross-url-block.html.ini
testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-star-allow-crossorigin.html.ini
testing/web-platform/meta/css/css-box/animation/padding-interpolation.html.ini
testing/web-platform/meta/css/css-scroll-snap/parsing/scroll-margin-block-computed.html.ini
testing/web-platform/meta/css/css-scroll-snap/parsing/scroll-margin-inline-computed.html.ini
testing/web-platform/meta/css/css-scroll-snap/parsing/scroll-padding-block-computed.html.ini
testing/web-platform/meta/css/css-scroll-snap/parsing/scroll-padding-inline-computed.html.ini
testing/web-platform/meta/css/css-typed-om/interfaces.html.ini
testing/web-platform/meta/css/css-variables/variable-substitution-background-properties.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001a.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001b.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001c.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001d.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001e.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001f.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001g.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001h.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001i.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001j.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001k.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001l.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001m.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001n.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001o.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001p.html.ini
testing/web-platform/meta/css/css-writing-modes/text-orientation-script-001q.html.ini
testing/web-platform/meta/css/cssom-view/interfaces.html.ini
testing/web-platform/meta/css/cssom/interfaces.html.ini
testing/web-platform/meta/css/filter-effects/interfaces.any.js.ini
testing/web-platform/meta/domparsing/interfaces.any.js.ini
testing/web-platform/meta/fetch/api/idl.any.js.ini
testing/web-platform/meta/html/dom/interfaces.https.html.ini
testing/web-platform/meta/html/dom/interfaces.worker.js.ini
testing/web-platform/meta/kv-storage/secure-context/import-maps.html.ini
testing/web-platform/meta/mathml/relations/css-styling/writing-mode/writing-mode-001.tentative.html.ini
testing/web-platform/meta/mathml/relations/css-styling/writing-mode/writing-mode-002.tentative.html.ini
testing/web-platform/meta/performance-timeline/case-sensitivity.any.js.ini
testing/web-platform/meta/permissions/interfaces.any.js.ini
testing/web-platform/meta/pointerevents/pointerlock/pointerevent_pointerlock_supercedes_capture.html.ini
testing/web-platform/meta/pointerevents/pointerlock/pointerevent_pointermove_on_chorded_mouse_button_when_locked.html.ini
testing/web-platform/meta/pointerlock/movementX_Y_basic.html.ini
testing/web-platform/meta/svg/animations/correct-events-for-short-animations-with-syncbases.html.ini
testing/web-platform/meta/webaudio/the-audio-api/the-audioworklet-interface/audioworklet-addmodule-resolution.https.html.ini
testing/web-platform/meta/workers/interfaces.worker.js.ini
testing/web-platform/tests/BackgroundSync/interfaces.https.any.js
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-margin-block-computed.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-margin-block-invalid.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-margin-block-valid.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-margin-inline-computed.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-margin-inline-invalid.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-margin-inline-valid.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-padding-block-computed.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-padding-block-invalid.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-padding-block-valid.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-padding-inline-computed.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-padding-inline-invalid.html
testing/web-platform/tests/css/css-scroll-snap/parsing/scroll-padding-inline-valid.html
testing/web-platform/tests/css/css-typed-om/interfaces.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001a.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001b.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001c.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001d.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001e.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001f.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001g.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001h.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001i.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001j.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001k.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001l.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001m.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001n.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001o.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001p.html
testing/web-platform/tests/css/css-writing-modes/text-orientation-script-001q.html
testing/web-platform/tests/css/css-writing-modes/tools/generators/text-orientation-generator.js
testing/web-platform/tests/css/css-writing-modes/tools/generators/text-orientation-ref.ejs
testing/web-platform/tests/css/css-writing-modes/tools/generators/text-orientation-script.ejs
testing/web-platform/tests/css/css-writing-modes/tools/generators/ucd/Blocks.txt
testing/web-platform/tests/css/css-writing-modes/tools/generators/ucd/DerivedGeneralCategory.txt
testing/web-platform/tests/css/css-writing-modes/tools/generators/ucd/VerticalOrientation-16.txt
testing/web-platform/tests/css/css-writing-modes/tools/generators/unicode-data.js
testing/web-platform/tests/css/cssom-view/interfaces.html
testing/web-platform/tests/css/cssom/interfaces.html
testing/web-platform/tests/css/filter-effects/interfaces.any.js
testing/web-platform/tests/domparsing/interfaces.any.js
testing/web-platform/tests/fetch/api/idl.any.js
testing/web-platform/tests/html/dom/interfaces.https.html
testing/web-platform/tests/html/dom/interfaces.worker.js
testing/web-platform/tests/interfaces/dedicated-workers.idl
testing/web-platform/tests/mathml/relations/css-styling/writing-mode/writing-mode-001.tentative.html
testing/web-platform/tests/mathml/relations/css-styling/writing-mode/writing-mode-002.tentative.html
testing/web-platform/tests/permissions/interfaces.any.js
testing/web-platform/tests/pointerlock/interfaces.window.js
testing/web-platform/tests/service-workers/specgen.json
testing/web-platform/tests/service-workers/stub-3.1-service-worker-obj.html
testing/web-platform/tests/service-workers/stub-3.1.1-service-worker-scope.html
testing/web-platform/tests/service-workers/stub-3.1.2-service-worker-url.html
testing/web-platform/tests/service-workers/stub-3.1.3-service-worker-state.html
testing/web-platform/tests/service-workers/stub-3.1.4-service-worker-on-state-change.html
testing/web-platform/tests/service-workers/stub-3.2-navigator-service-worker.html
testing/web-platform/tests/service-workers/stub-3.2.1-navigator-service-worker-installing.html
testing/web-platform/tests/service-workers/stub-3.2.10-navigator-service-worker-oncontrollerchange.html
testing/web-platform/tests/service-workers/stub-3.2.11-navigator-service-worker-onreloadpage.html
testing/web-platform/tests/service-workers/stub-3.2.12-navigator-service-worker-onerror.html
testing/web-platform/tests/service-workers/stub-3.2.2-navigator-service-worker-waiting.html
testing/web-platform/tests/service-workers/stub-3.2.3-navigator-service-worker-active.html
testing/web-platform/tests/service-workers/stub-3.2.4-navigator-service-worker-controller.html
testing/web-platform/tests/service-workers/stub-3.2.5-navigator-service-worker-ready.html
testing/web-platform/tests/service-workers/stub-3.2.6-navigator-service-worker-getAll.html
testing/web-platform/tests/service-workers/stub-3.2.7-navigator-service-worker-register.html
testing/web-platform/tests/service-workers/stub-3.2.8-navigator-service-worker-unregister.html
testing/web-platform/tests/service-workers/stub-3.2.9-navigator-service-worker-onupdatefound.html
testing/web-platform/tests/service-workers/stub-4.1-service-worker-global-scope.html
testing/web-platform/tests/service-workers/stub-4.1.1-service-worker-global-scope-caches.html
testing/web-platform/tests/service-workers/stub-4.1.2-service-worker-global-scope-clients.html
testing/web-platform/tests/service-workers/stub-4.1.3-service-worker-global-scope-scope.html
testing/web-platform/tests/service-workers/stub-4.1.4-service-worker-global-scope-fetch.html
testing/web-platform/tests/service-workers/stub-4.1.5-service-worker-global-scope-update.html
testing/web-platform/tests/service-workers/stub-4.1.6-service-worker-global-scope-unregister.html
testing/web-platform/tests/service-workers/stub-4.1.7-service-worker-global-scope-onmessage.html
testing/web-platform/tests/service-workers/stub-4.2-client.html
testing/web-platform/tests/service-workers/stub-4.3-service-worker-clients.html
testing/web-platform/tests/service-workers/stub-4.3.1-get-serviced-method.html
testing/web-platform/tests/service-workers/stub-4.3.2-reloadall-method.html
testing/web-platform/tests/service-workers/stub-4.4-request-objects.html
testing/web-platform/tests/service-workers/stub-4.5-response-objects.html
testing/web-platform/tests/service-workers/stub-4.5.2-response.html
testing/web-platform/tests/service-workers/stub-4.5.4-opaque-response.html
testing/web-platform/tests/service-workers/stub-4.6-cache-objects.html
testing/web-platform/tests/service-workers/stub-4.6.1-cache-lifetimes.html
testing/web-platform/tests/service-workers/stub-4.6.2-cache.html
testing/web-platform/tests/service-workers/stub-4.6.3-cache-storage.html
testing/web-platform/tests/service-workers/stub-4.7.1-install-phase-event.html
testing/web-platform/tests/service-workers/stub-4.7.1.1-wait-until-method.html
testing/web-platform/tests/service-workers/stub-4.7.2-install-event.html
testing/web-platform/tests/service-workers/stub-4.7.2.1-install-event-section.html
testing/web-platform/tests/service-workers/stub-4.7.2.2-replace-method.html
testing/web-platform/tests/service-workers/stub-4.7.3-activate-event.html
testing/web-platform/tests/service-workers/stub-4.7.4.1-fetch-event-section.html
testing/web-platform/tests/service-workers/stub-4.7.4.2-respond-with-method.html
testing/web-platform/tests/service-workers/stub-4.7.4.3-default-method.html
testing/web-platform/tests/service-workers/stub-4.7.4.4-is-reload-attribute.html
testing/web-platform/tests/service-workers/stub-5.1-origin-relativity.html
testing/web-platform/tests/service-workers/stub-5.2-cross-origin-resources.html
testing/web-platform/tests/service-workers/tools/blink-import.py
testing/web-platform/tests/workers/interfaces.worker.js
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/BackgroundSync/idlharness.https.any.js.ini
@@ -0,0 +1,57 @@
+[idlharness.https.any.html]
+  [SyncManager interface object name]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface prototype object]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface prototype object's "constructor" property]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface prototype object's @@unscopables property]
+    expected: FAIL
+
+  [SyncManager interface object length]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface object]
+    expected: FAIL
+
+  [ServiceWorkerRegistration interface: attribute sync]
+    expected: FAIL
+
+  [SyncManager interface: operation getTags()]
+    expected: FAIL
+
+  [SyncManager interface: operation register(DOMString)]
+    expected: FAIL
+
+
+[idlharness.https.any.worker.html]
+  [SyncManager interface object name]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface prototype object]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface prototype object's "constructor" property]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface prototype object's @@unscopables property]
+    expected: FAIL
+
+  [SyncManager interface object length]
+    expected: FAIL
+
+  [SyncManager interface: existence and properties of interface object]
+    expected: FAIL
+
+  [ServiceWorkerRegistration interface: attribute sync]
+    expected: FAIL
+
+  [SyncManager interface: operation getTags()]
+    expected: FAIL
+
+  [SyncManager interface: operation register(DOMString)]
+    expected: FAIL
+
deleted file mode 100644
--- a/testing/web-platform/meta/BackgroundSync/interfaces.https.any.js.ini
+++ /dev/null
@@ -1,57 +0,0 @@
-[interfaces.https.any.html]
-  [SyncManager interface: existence and properties of interface object]
-    expected: FAIL
-
-  [SyncManager interface object length]
-    expected: FAIL
-
-  [SyncManager interface object name]
-    expected: FAIL
-
-  [SyncManager interface: existence and properties of interface prototype object]
-    expected: FAIL
-
-  [SyncManager interface: existence and properties of interface prototype object's "constructor" property]
-    expected: FAIL
-
-  [SyncManager interface: existence and properties of interface prototype object's @@unscopables property]
-    expected: FAIL
-
-  [SyncManager interface: operation register(DOMString)]
-    expected: FAIL
-
-  [SyncManager interface: operation getTags()]
-    expected: FAIL
-
-  [ServiceWorkerRegistration interface: attribute sync]
-    expected: FAIL
-
-
-[interfaces.https.any.worker.html]
-  [SyncManager interface: existence and properties of interface object]
-    expected: FAIL
-
-  [SyncManager interface object length]
-    expected: FAIL
-
-  [SyncManager interface object name]
-    expected: FAIL
-
-  [SyncManager interface: existence and properties of interface prototype object]
-    expected: FAIL
-
-  [SyncManager interface: existence and properties of interface prototype object's "constructor" property]
-    expected: FAIL
-
-  [SyncManager interface: existence and properties of interface prototype object's @@unscopables property]
-    expected: FAIL
-
-  [SyncManager interface: operation register(DOMString)]
-    expected: FAIL
-
-  [SyncManager interface: operation getTags()]
-    expected: FAIL
-
-  [ServiceWorkerRegistration interface: attribute sync]
-    expected: FAIL
-
--- a/testing/web-platform/meta/WebCryptoAPI/idlharness.https.any.js.ini
+++ b/testing/web-platform/meta/WebCryptoAPI/idlharness.https.any.js.ini
@@ -24,8 +24,10 @@
     expected: FAIL
 
   [CryptoKey interface: attribute algorithm]
     expected: FAIL
 
   [CryptoKey interface: attribute usages]
     expected: FAIL
 
+
+[idlharness.https.any.html]
--- a/testing/web-platform/meta/audio-output/setSinkId.https.html.ini
+++ b/testing/web-platform/meta/audio-output/setSinkId.https.html.ini
@@ -1,12 +1,12 @@
 [setSinkId.https.html]
   prefs: [media.setsinkid.enabled:true]
   expected:
-    if (os == "android") and e10s: TIMEOUT
+    if os == "android": TIMEOUT
   [List device, setSinkId should be allowed on the default, the rest of the devices will get a NotAllowedError]
     expected:
-      if (os == "android") and e10s: NOTRUN
+      if os == "android": NOTRUN
 
   [setSinkId fails with NotFoundError on made up deviceid]
     expected:
-      if (os == "android") and e10s: TIMEOUT
+      if os == "android": TIMEOUT
 
--- a/testing/web-platform/meta/content-security-policy/embedded-enforcement/subsumption_algorithm-host_sources-ports.html.ini
+++ b/testing/web-platform/meta/content-security-policy/embedded-enforcement/subsumption_algorithm-host_sources-ports.html.ini
@@ -1,13 +1,11 @@
 [subsumption_algorithm-host_sources-ports.html]
   [Specified ports must match.]
-    expected:
-      if webrender and debug and (os == "linux"): FAIL
-      FAIL
+    expected: FAIL
 
   [Returned CSP should be subsumed if the port is specified but is not default for a more secure scheme.]
     expected: FAIL
 
   [Wildcard port should not be subsumed by a default port.]
     expected: FAIL
 
   [Wildcard port should not be subsumed by a spcified port.]
deleted file mode 100644
--- a/testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-nested-cross-in-same-star-allow.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[frame-ancestors-nested-cross-in-same-star-allow.html]
-  [A 'frame-ancestors' CSP directive with a value '*' should render in nested frames.]
-    expected: FAIL
-
deleted file mode 100644
--- a/testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-nested-cross-in-same-url-allow.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[frame-ancestors-nested-cross-in-same-url-allow.html]
-  [A 'frame-ancestors' CSP directive with a URL value should block or allow rendering in nested frames as appropriate.]
-    expected: FAIL
-
deleted file mode 100644
--- a/testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-nested-cross-in-sandboxed-cross-url-block.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[frame-ancestors-nested-cross-in-sandboxed-cross-url-block.html]
-  [A 'frame-ancestors' CSP directive with a URL value should compare against each frame's origin rather than URL, so a nested frame with a sandboxed parent frame should be blocked due to the parent having a unique origin.]
-    expected: FAIL
-
deleted file mode 100644
--- a/testing/web-platform/meta/content-security-policy/frame-ancestors/frame-ancestors-star-allow-crossorigin.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[frame-ancestors-star-allow-crossorigin.html]
-  [A 'frame-ancestors' CSP directive with '*' should allow rendering.]
-    expected: FAIL
-
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/CSS2/linebox/scrollable-overflow.tentative.html.ini
@@ -0,0 +1,2 @@
+[scrollable-overflow.tentative.html]
+  expected: FAIL
--- a/testing/web-platform/meta/css/css-align/animation/column-gap-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-align/animation/column-gap-interpolation.html.ini
@@ -2,185 +2,227 @@
   expected:
     if (processor == "x86") and debug: CRASH
   [column-gap interpolation]
     expected: FAIL
 
   [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [Web Animations: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [Web Animations: property <column-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Animations: property <column-gap> from neutral to [40px\] at (0.3) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [Web Animations: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from neutral to [40px\] at (1.5) should be [55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from neutral to [40px\] at (1.5) should be [55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from neutral to [40px\] at (0.3) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (0.6) should be [28px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (0.3) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (1.5) should be [55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <column-gap> from neutral to [40px\] at (0.6) should be [28px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from neutral to [40px\] at (0.6) should be [28px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-align/animation/row-gap-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-align/animation/row-gap-interpolation.html.ini
@@ -2,185 +2,227 @@
   expected:
     if (processor == "x86") and debug: CRASH
   [row-gap interpolation]
     expected: FAIL
 
   [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (0.6) should be [28px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [Web Animations: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [Web Animations: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from neutral to [40px\] at (0.6) should be [28px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [Web Animations: property <row-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <row-gap> from neutral to [40px\] at (0.6) should be [28px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-backgrounds/animations/background-color-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/background-color-interpolation.html.ini
@@ -6,293 +6,365 @@
 
   [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions with transition: all: property <background-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [transparent\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (-0.5) should be [rgba(0, 0, 255, 0.38)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.25) should be [rgba(0, 85, 170, 0.56)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [initial\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1.5) should be [rgba(0, 255, 0, 0.88)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 255)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [inherit\] to [green\] at (0.3) should be [rgb(167, 205, 167)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 73, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 255)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [transparent\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [initial\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [initial\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (-0.5) should be [rgba(0, 0, 255, 0.38)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [transparent\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [inherit\] to [green\] at (0.6) should be [rgb(95, 172, 95)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (-0.5) should be [rgba(0, 0, 255, 0.38)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 73, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 255)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [initial\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [initial\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [inherit\] to [green\] at (0.6) should be [rgb(95, 172, 95)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [transparent\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [transparent\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [unset\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [transparent\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [transparent\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.75) should be [rgba(0, 208, 47, 0.69)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (0.3) should be [rgb(167, 205, 167)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 73, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [unset\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [initial\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.75) should be [rgba(0, 208, 47, 0.69)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1.5) should be [rgba(0, 255, 0, 0.88)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [transparent\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1.5) should be [rgba(0, 255, 0, 0.88)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [unset\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [unset\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.75) should be [rgba(0, 208, 47, 0.69)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [unset\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.25) should be [rgba(0, 85, 170, 0.56)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (0.6) should be [rgb(95, 172, 95)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [inherit\] to [green\] at (0.3) should be [rgb(167, 205, 167)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.25) should be [rgba(0, 85, 170, 0.56)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-color> from [unset\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-color> from [transparent\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-backgrounds/animations/background-position-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/background-position-interpolation.html.ini
@@ -326,185 +326,230 @@
     expected: FAIL
 
   [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (0.25) should be [20px 20px, 20px 20px, 20px 20px, 20px 20px\]]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [20px 20px, 20px 20px, 20px 20px, 20px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [20px 20px, 20px 20px, 20px 20px, 20px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [20px 20px, 20px 20px, 20px 20px, 20px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-backgrounds/animations/background-position-origin-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/background-position-origin-interpolation.html.ini
@@ -202,401 +202,500 @@
 
   [Web Animations: property <background-position> from [center center\] to [left 20px center\] at (0.5) should be [calc(25% + 10px) 50%\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [center bottom 20px\] at (0.75) should be [50% calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.5) should be [50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px center\] at (0.5) should be [calc(25% + 10px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px top 20px\] at (0.25) should be [calc(62.5% - 5px) calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [center top 20px\] at (0.5) should be [50% calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (0.5) should be [calc(25% + 10px) calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px\] at (0.25) should be [12.5px 12.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center\] to [bottom\] at (0.75) should be [50% 87.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center\] to [bottom\] at (0.5) should be [50% 75%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.5) should be [calc(25% + 10px) calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [center bottom 20px\] at (0.75) should be [50% calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [center bottom 20px\] at (0.25) should be [50% calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px top 20px\] at (0.25) should be [calc(62.5% - 5px) calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px center\] at (0.25) should be [calc(37.5% + 5px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px top 20px\] at (0.5) should be [calc(75% - 10px) calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [left 20px top 20px\] at (0.5) should be [15px 15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px top 20px\] at (0.75) should be [calc(87.5% - 15px) calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [center top 20px\] at (0.25) should be [50% calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px center\] at (0.75) should be [calc(87.5% - 15px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px center\] at (0.25) should be [calc(37.5% + 5px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [left 20px top 20px\] at (0.25) should be [12.5px 12.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center\] to [bottom\] at (0.25) should be [50% 62.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center\] to [bottom\] at (0.75) should be [50% 87.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [center top 20px\] at (0.75) should be [50% calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [center top 20px\] at (0.5) should be [50% calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.75) should be [calc(12.5% + 15px) calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px center\] at (0.5) should be [calc(75% - 10px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [center bottom 20px\] at (0.5) should be [50% calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px top 20px\] at (0.25) should be [calc(37.5% + 5px) calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px top 20px\] at (0.5) should be [calc(25% + 10px) calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.75) should be [calc(12.5% + 15px) calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px center\] at (0.75) should be [calc(12.5% + 15px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [center top 20px\] at (0.5) should be [50% calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [left 20px top 20px\] at (0.5) should be [15px 15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from neutral to [left 20px top 20px\] at (0.75) should be [17.5px 17.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px center\] at (0.25) should be [calc(62.5% - 5px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.75) should be [35px 35px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.75) should be [35px 35px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [center bottom 20px\] at (0.25) should be [50% calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.5) should be [calc(25% + 10px) calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px\] at (0.75) should be [17.5px 17.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px center\] at (0.75) should be [calc(87.5% - 15px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.5) should be [50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.5) should be [50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.75) should be [calc(87.5% - 15px) calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.25) should be [65px 65px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.25) should be [65px 65px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [center top 20px\] at (0.25) should be [50% calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px top 20px\] at (0.75) should be [calc(12.5% + 15px) calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [center bottom 20px\] at (0.5) should be [50% calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [center bottom 20px\] at (0.25) should be [50% calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px\] at (0.5) should be [15px 15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.5) should be [calc(75% - 10px) calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px top 20px\] at (0.75) should be [calc(87.5% - 15px) calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center\] to [bottom\] at (0.75) should be [50% 87.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.75) should be [calc(87.5% - 15px) calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px top 20px\] at (0.75) should be [calc(12.5% + 15px) calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px center\] at (0.75) should be [calc(12.5% + 15px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px center\] at (0.5) should be [calc(75% - 10px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px top 20px\] at (0.25) should be [calc(37.5% + 5px) calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.25) should be [calc(62.5% - 5px) calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.75) should be [calc(12.5% + 15px) calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.75) should be [calc(87.5% - 15px) calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px center\] at (0.5) should be [calc(75% - 10px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.25) should be [65px 65px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px center\] at (0.25) should be [calc(62.5% - 5px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px center\] at (0.5) should be [calc(25% + 10px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [left 20px top 20px\] at (0.75) should be [17.5px 17.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [center top 20px\] at (0.75) should be [50% calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.25) should be [calc(37.5% + 5px) calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.25) should be [calc(37.5% + 5px) calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px center\] at (0.75) should be [calc(87.5% - 15px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (0.25) should be [calc(37.5% + 5px) calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.75) should be [35px 35px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px center\] at (0.25) should be [calc(37.5% + 5px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px center\] at (0.75) should be [calc(12.5% + 15px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [center bottom 20px\] at (0.5) should be [50% calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.25) should be [calc(62.5% - 5px) calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.5) should be [calc(75% - 10px) calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center\] to [bottom\] at (0.5) should be [50% 75%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (0.75) should be [calc(87.5% - 15px) calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [center bottom 20px\] at (0.75) should be [50% calc(87.5% - 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px center\] at (0.25) should be [calc(62.5% - 5px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center\] to [bottom\] at (0.25) should be [50% 62.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (0.5) should be [calc(75% - 10px) calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.25) should be [calc(62.5% - 5px) calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from neutral to [left 20px top 20px\] at (0.25) should be [12.5px 12.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [center top 20px\] at (0.25) should be [50% calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [center top 20px\] at (0.75) should be [50% calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center\] to [bottom\] at (0.25) should be [50% 62.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (0.25) should be [calc(62.5% - 5px) calc(37.5% + 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (0.75) should be [calc(12.5% + 15px) calc(12.5% + 15px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.5) should be [calc(75% - 10px) calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.5) should be [calc(25% + 10px) calc(75% - 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center\] to [bottom\] at (0.5) should be [50% 75%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px center\] at (0.5) should be [calc(25% + 10px) 50%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [right 20px top 20px\] at (0.5) should be [calc(75% - 10px) calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-position> from [center center\] to [left 20px top 20px\] at (0.5) should be [calc(25% + 10px) calc(25% + 10px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.25) should be [calc(37.5% + 5px) calc(62.5% - 5px)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-backgrounds/animations/background-size-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/background-size-interpolation.html.ini
@@ -140,357 +140,445 @@
     expected: FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.5) should be [20px, 20px 20px, contain, cover\]]
     expected: FAIL
 
   [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.25) should be [20px 20px, 20px 20px, 20px 20px, 20px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.6) should be [40px 40px, 40px 40px, cover, contain\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px, 20px 20px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [7.5px 7.5px, 12.5px 12.5px, 7.5px 7.5px, 12.5px 12.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [50px 50px, 80px 100px, 0px 100px, 30px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.75) should be [15px 15px, 30px 30px, 45px 45px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.5) should be [40px 40px, 40px 40px, cover, contain\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px, 20px 20px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [0px 0px, 0px 0px, 0px 0px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [7.5px 7.5px, 12.5px 12.5px, 7.5px 7.5px, 12.5px 12.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.75) should be [15px 15px, 30px 30px, 45px 45px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px, 20px 20px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [80px 80px, 75px 75px, 80px 80px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0.25) should be [20px, 20px, 20px, 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.5) should be [15px 15px, 5px 5px, 15px 15px, 5px 5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px, 20px 20px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px, 0px 0px, 22.5px 22.5px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [60px 60px, 50px 50px, 60px 60px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.5) should be [10px 10px, 20px 20px, 30px 30px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.5) should be [10px 10px, 20px 20px, 30px 30px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [0px 0px, 80px 0px, 0px 0px, 90px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.25) should be [10px 10px, 80px 20px, 0px 20px, 70px 10px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.5) should be [10px 10px, 20px 20px, 30px 30px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px, 7.5px 7.5px, 12.5px 12.5px, 7.5px 7.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0.25) should be [20px 20px, 20px 20px, 20px 20px, 20px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [80px 80px, 75px 75px, 80px 80px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [50px 50px, 80px 100px, 0px 100px, 30px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.75) should be [30px 30px, 80px 60px, 0px 60px, 50px 30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px\] to [80px\] at (0.25) should be [20px, 20px, 20px, 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px, 0px 0px, 22.5px 22.5px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [40px 40px, 25px 25px, 40px 40px, 25px 25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.25) should be [10px 10px, 80px 20px, 0px 20px, 70px 10px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px, 7.5px 7.5px, 12.5px 12.5px, 7.5px 7.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px, 0px 0px, 22.5px 22.5px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px, 2.5px 2.5px, 17.5px 17.5px, 2.5px 2.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (0.75) should be [60px, 60px, 60px, 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [20px 20px, 80px 40px, 0px 40px, 60px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.75) should be [30px 30px, 80px 60px, 0px 60px, 50px 30px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.6) should be [auto 40px, 40px 40px, auto 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0.5) should be [40px, 40px, 40px, 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [40px 40px, 25px 25px, 40px 40px, 25px 25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [7.5px 7.5px, 12.5px 12.5px, 7.5px 7.5px, 12.5px 12.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [60px 60px, 50px 50px, 60px 60px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1.5) should be [40px 40px, 40px 40px, cover, contain\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0.75) should be [60px, 60px, 60px, 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [60px 60px, 50px 50px, 60px 60px, 50px 50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px, 20px 20px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.5) should be [15px 15px, 5px 5px, 15px 15px, 5px 5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [0px 0px, 0px 0px, 0px 0px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [40px 40px, 25px 25px, 40px 40px, 25px 25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [0px 0px, 80px 0px, 0px 0px, 90px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px\] to [80px\] at (0.5) should be [40px, 40px, 40px, 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0.25) should be [20px 20px, 20px 20px, 20px 20px, 20px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px, 2.5px 2.5px, 17.5px 17.5px, 2.5px 2.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1.5) should be [auto 40px, 40px 40px, auto 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.5) should be [auto 40px, 40px 40px, auto 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px, 2.5px 2.5px, 17.5px 17.5px, 2.5px 2.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px, 7.5px 7.5px, 12.5px 12.5px, 7.5px 7.5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (0.25) should be [20px, 20px, 20px, 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.75) should be [15px 15px, 30px 30px, 45px 45px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [20px 20px, 80px 40px, 0px 40px, 60px 20px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px\] to [80px\] at (0.75) should be [60px, 60px, 60px, 60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.5) should be [15px 15px, 5px 5px, 15px 15px, 5px 5px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.25) should be [5px 5px, 10px 10px, 15px 15px, 25px 25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [80px 80px, 75px 75px, 80px 80px, 75px 75px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.25) should be [5px 5px, 10px 10px, 15px 15px, 25px 25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px, 20px 20px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (0.5) should be [40px, 40px, 40px, 40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [0px 0px, 0px 0px, 0px 0px, 0px 0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.25) should be [5px 5px, 10px 10px, 15px 15px, 25px 25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/border-color-interpolation.html.ini
@@ -0,0 +1,327 @@
+[border-color-interpolation.html]
+  expected:
+    if (processor == "x86") and debug: CRASH
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (0.6) should be [rgb(153, 99, 56)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (-0.3) should be [rgb(0, 0, 181)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [inherit\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [unset\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [unset\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [inherit\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [initial\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [inherit\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [initial\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [inherit\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [initial\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (-0.3) should be [rgb(0, 0, 181)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [unset\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [inherit\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [unset\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (0.6) should be [rgb(153, 99, 56)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (0.6) should be [rgb(153, 99, 56)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [initial\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (-0.3) should be [rgb(0, 0, 181)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [inherit\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [\]]
+    expected: FAIL
+
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/border-image-outset-interpolation.html.ini
@@ -0,0 +1,381 @@
+[border-image-outset-interpolation.html]
+  expected:
+    if (processor == "x86") and debug: CRASH
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (0) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (0) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0) should be [1 2 3px 4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0) should be [1 2 3px 4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2px\] at (0.3) should be [0.6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2px\] at (1.5) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2px\] at (0.6) should be [1.2px\]]
+    expected: FAIL
+
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini
@@ -0,0 +1,620 @@
+[border-image-slice-interpolation.html]
+  expected:
+    if (processor == "x86") and debug: CRASH
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (1.5) should be [100\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0) should be [0% 10% 20% 30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.5) should be [40 50 60% 70\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.6) should be [100 fill\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.5) should be [100\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.6) should be [40% 50 60% 70\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1.5) should be [40 50 60% 70\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1.5) should be [50%\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.5) should be [100 fill\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.5) should be [40% 50 60% 70\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0) should be [0% 10% 20% 30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (1.5) should be [100 fill\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0) should be [0 10 20 30 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1.5) should be [40% 50 60% 70\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.6) should be [100\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.5) should be [50%\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (0) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (0.5) should be [100\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (0) should be [20%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.6) should be [40 50 60% 70\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (0) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.5) should be [40 50 60% 70\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0) should be [0 10 20 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.5) should be [40% 50 60% 70\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (0) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.5) should be [100 fill\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.5) should be [50%\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.6) should be [50%\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/border-image-source-interpolation.html.ini
@@ -0,0 +1,136 @@
+[border-image-source-interpolation.html]
+  expected:
+    if (processor == "x86") and debug: CRASH
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (1.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.6) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.6) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (1.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.6) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (1.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.6) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (1.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (1.5) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.6) should be [url(http://web-platform.test:8000/.../orange_color.png)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, rgb(0, 0, 255), rgb(255, 165, 0))\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/border-image-width-interpolation.html.ini
@@ -0,0 +1,766 @@
+[border-image-width-interpolation.html]
+  expected:
+    if (processor == "x86") and debug: CRASH
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px 95% 75 55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(-6% + 13px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(-6% + 13px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.5) should be [20\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (0.5) should be [20px\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px 5% 21 37px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px 35% 39 43px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(6% + 7px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px 5% 21 37px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(12% + 4px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(6% + 7px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (1.5) should be [20\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [40px auto auto 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (1.5) should be [20%\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [70px auto auto 80\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(30% - 5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [70px auto auto 80\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (1.5) should be [20\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [70px auto auto 80\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (0.5) should be [20\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(30% - 5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [70px auto auto 80\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px 50% 48 46px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (1) should be [calc(0% + 20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (0.6) should be [20\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px 95% 75 55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [0px auto auto 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px 95% 75 55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [40px auto auto 50\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (1.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.5) should be [20%\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (1) should be [calc(0% + 20px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(30% - 5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px 95% 75 55px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.5) should be [110px auto 120\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [0px auto auto 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(12% + 4px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px 50% 48 46px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [40px auto auto 50\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(30% - 5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180 90px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% - 6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% - 6px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (0) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px 35% 39 43px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (0.5) should be [20%\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.6) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px 50% 48 46px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px 35% 39 43px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% - 6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (0.5) should be [20\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (0) should be [calc(0% + 10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180 90px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.5) should be [110px auto 120\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.6) should be [110px auto 120\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (0) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% - 6px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0) should be [calc(0% + 10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (0) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (1) should be [calc(0% + 20px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (0) should be [calc(0% + 10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(12% + 4px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [40px auto auto 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px 50% 48 46px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (0) should be [calc(0% + 10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(-6% + 13px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px 5% 21 37px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(-6% + 13px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(6% + 7px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.6) should be [20%\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (0.5) should be [20\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [0px auto auto 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180 90px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px 5% 21 37px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected:
+      if (os == "win") and (processor == "x86_64"): FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180 90px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px 35% 39 43px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(6% + 7px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (1) should be [calc(0% + 20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.6) should be [20\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1.5) should be [110px auto 120\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(12% + 4px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0) should be [10px 20% 30 40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (0) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [0px auto auto 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0) should be [10px 20% 30 40px\]]
+    expected: FAIL
+
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/border-radius-interpolation.html.ini
@@ -0,0 +1,480 @@
+[border-radius-interpolation.html]
+  expected:
+    if (processor == "x86") and debug: CRASH
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0.6) should be [calc(60% + 4px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (0.6) should be [34px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (1.5) should be [70px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (0.3) should be [22px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (0.6) should be [34px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-0.3) should be [23px 17px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (-0.3) should be [calc(-30% + 13px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (1.5) should be [calc(150% - 5px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (0.6) should be [calc(60% + 4px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (0.6) should be [34px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-2) should be [40px 0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (-0.3) should be [calc(-30% + 13px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-2) should be [40px 0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-2) should be [40px 0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.3) should be [17px 23px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (1.5) should be [70px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (1.5) should be [calc(150% - 5px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (0.3) should be [calc(30% + 7px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.6) should be [14px 26px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (0.6) should be [calc(60% + 4px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (1.5) should be [70px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (0.3) should be [22px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0.3) should be [calc(30% + 7px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.6) should be [14px 26px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-0.3) should be [23px 17px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.3) should be [17px 23px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (0.3) should be [22px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (0.3) should be [calc(30% + 7px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1.5) should be [5px 35px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-0.3) should be [23px 17px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1.5) should be [5px 35px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (-0.3) should be [calc(-30% + 13px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.3) should be [17px 23px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1.5) should be [5px 35px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.6) should be [14px 26px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (1.5) should be [calc(150% - 5px)\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [\]]
+    expected: FAIL
+
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/animations/border-width-interpolation.html.ini
@@ -0,0 +1,653 @@
+[border-width-interpolation.html]
+  expected:
+    if (processor == "x86") and debug: CRASH
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (-0.3) should be [18px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (-2) should be [35px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (-2) should be [35px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (0.6) should be [9px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (0.6) should be [9px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [inherit\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (0.3) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (1.5) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (0.3) should be [4px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (0.3) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (0.3) should be [4px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (1.5) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (-0.25) should be [1px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (-0.25) should be [1px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (-0.25) should be [1px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (1.5) should be [18px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (1.5) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [inherit\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (0.6) should be [9px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (0.6) should be [9px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [inherit\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (0.6) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (1.5) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (0.6) should be [9px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (1.5) should be [18px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [inherit\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (-2) should be [35px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (-0.3) should be [18px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (0.3) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (0.6) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (1.5) should be [30px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [inherit\] to [20px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (1.5) should be [18px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (-0.3) should be [18px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (0.6) should be [9px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (1.5) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [inherit\] to [20px\] at (0.6) should be [12px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (0.3) should be [6px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (0.3) should be [4px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (-2) should be [0px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (0.6) should be [7px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (1.5) should be [16px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected:
+      if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [\]]
+    expected: FAIL
+
new file mode 100644
--- /dev/null
+++ b/testing/web-platform/meta/css/css-backgrounds/parsing/border-image-source-computed.sub.html.ini
@@ -0,0 +1,10 @@
+[border-image-source-computed.sub.html]
+  [Property border-image-source value 'conic-gradient(from 90deg at 80% 90%, lime, black)' computes to 'conic-gradient(from 90deg at 80% 90%, rgb(0, 255, 0), rgb(0, 0, 0))']
+    expected: FAIL
+
+  [Property border-image-source value 'linear-gradient(to 1px 2px, red, currentcolor)' computes to 'linear-gradient(to 1px 2px, rgb(255, 0, 0), rgb(0, 0, 255))']
+    expected: FAIL
+
+  [Property border-image-source value 'repeating-linear-gradient(-45deg, red, 50%, lime)' computes to 'repeating-linear-gradient(-45deg, rgb(255, 0, 0), rgb(0, 0, 255) 50%, rgb(0, 255, 0))']
+    expected: FAIL
+
deleted file mode 100644
--- a/testing/web-platform/meta/css/css-box/animation/padding-interpolation.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[padding-interpolation.html]
-  [padding interpolation]
-    expected: FAIL
-
--- a/testing/web-platform/meta/css/css-color/animation/color-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-color/animation/color-interpolation.html.ini
@@ -2,189 +2,234 @@
   expected:
     if (processor == "x86") and debug: CRASH
   [color interpolation]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [Web Animations: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions with transition: all: property <color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-flexbox/animation/flex-basis-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-flexbox/animation/flex-basis-interpolation.html.ini
@@ -2,205 +2,253 @@
   expected:
     if (processor == "x86") and debug: CRASH
   [flex-basis interpolation]
     expected: FAIL
 
   [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.6) should be [2%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (-0.3) should be [3.3%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (0.3) should be [2.7%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.5) should be [2%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (1.5) should be [2%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (0.3) should be [2.7%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [0%\] to [100%\] at (1.5) should be [150%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.5) should be [2%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (1.5) should be [2%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (1.5) should be [2.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (0.6) should be [2.4%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (0.3) should be [2.7%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from neutral to [2%\] at (1.5) should be [2.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from neutral to [2%\] at (1.5) should be [2.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from neutral to [2%\] at (0.6) should be [1.6%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0.5) should be [2%\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (0.6) should be [2.4%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [0%\] to [100%\] at (1.5) should be [150%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [Web Animations: property <flex-basis> from [unset\] to [2%\] at (0.5) should be [2%\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (1.5) should be [150%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (0.6) should be [2.4%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (0.6) should be [1.6%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-basis> from neutral to [2%\] at (0.6) should be [1.6%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (-0.3) should be [3.3%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (-0.3) should be [3.3%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.6) should be [2%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-flexbox/animation/flex-grow-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-flexbox/animation/flex-grow-interpolation.html.ini
@@ -2,269 +2,335 @@
   expected:
     if (processor == "x86") and debug: CRASH
   [flex-grow interpolation]
     expected: FAIL
 
   [CSS Animations: property <flex-grow> from [1\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [1\] to [2\] at (-5) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [unset\] to [2\] at (0.3) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [unset\] to [2\] at (0.6) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [1\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [unset\] to [2\] at (1.5) should be [3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from neutral to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [1\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from neutral to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [unset\] to [2\] at (1.5) should be [3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [0\] to [1\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [unset\] to [2\] at (0.3) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from neutral to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [1\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [initial\] to [2\] at (0.3) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [1\] to [2\] at (-5) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from neutral to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [1\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [1\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [0\] to [1\] at (0.3) should be [0.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [initial\] to [2\] at (0.3) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from neutral to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from neutral to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [initial\] to [2\] at (1.5) should be [3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (-5) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [initial\] to [2\] at (1.5) should be [3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from neutral to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [initial\] to [2\] at (0.6) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [initial\] to [2\] at (0.6) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [0\] to [1\] at (0.6) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [initial\] to [2\] at (0.3) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [initial\] to [2\] at (1.5) should be [3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [unset\] to [2\] at (0.3) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [0\] to [1\] at (0.3) should be [0.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [1\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [1\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [unset\] to [2\] at (0.6) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [unset\] to [2\] at (1.5) should be [3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [initial\] to [2\] at (0.6) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [unset\] to [2\] at (0.6) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [0\] to [1\] at (0.6) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [0\] to [1\] at (0.3) should be [0.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [0\] to [1\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-grow> from [0\] to [1\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from neutral to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [0\] to [1\] at (0.6) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-flexbox/animation/flex-shrink-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-flexbox/animation/flex-shrink-interpolation.html.ini
@@ -2,293 +2,365 @@
   expected:
     if (processor == "x86") and debug: CRASH
   [flex-shrink interpolation]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from neutral to [2\] at (0.3) should be [1.65\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (-5) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from neutral to [2\] at (0.6) should be [1.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from neutral to [2\] at (1.5) should be [2.25\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from neutral to [2\] at (1.5) should be [2.25\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from neutral to [2\] at (0.3) should be [1.65\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [1\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [1\] to [2\] at (-5) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from neutral to [2\] at (-0.3) should be [1.35\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [0\] to [1\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [0\] to [1\] at (0.6) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (-0.3) should be [1.35\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [0\] to [1\] at (0.6) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [0\] to [1\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [1\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [0\] to [1\] at (0.3) should be [0.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [1\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (0.3) should be [1.65\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [0\] to [1\] at (0.3) should be [0.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from neutral to [2\] at (0.6) should be [1.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (-5) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from neutral to [2\] at (-0.3) should be [1.35\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [0\] to [1\] at (0.3) should be [0.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (0.6) should be [1.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [0\] to [1\] at (0.6) should be [0.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [0\] to [1\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [1\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (1.5) should be [2.25\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-fonts/animations/font-size-adjust-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-fonts/animations/font-size-adjust-interpolation.html.ini
@@ -10,305 +10,380 @@
 
   [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (0.5) should be [2\]]
     expected:
       if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (0.6) should be [0.72\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (-0.3) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.5) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (-2) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (0.3) should be [0.36\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (0.6) should be [0.72\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (1.5) should be [1.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (-2) should be [5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from neutral to [2\] at (-2) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (0.6) should be [0.72\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (0.3) should be [0.36\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (0.3) should be [0.36\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (1.5) should be [2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (0.5) should be [2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (1.5) should be [1.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.6) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from neutral to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (0.6) should be [0.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (1.5) should be [1.2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from neutral to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (0.6) should be [0.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (1.5) should be [1.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (-2) should be [5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from neutral to [2\] at (0.3) should be [1.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (-2) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (1.5) should be [1.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (-2) should be [5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0.6) should be [0.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (-2) should be [5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (0.3) should be [0.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (-2) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (0.3) should be [0.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from neutral to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (-2) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (-2) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (0.6) should be [1.6\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (1.5) should be [1.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (0.3) should be [2.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (-2) should be [5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0.3) should be [0.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (0.6) should be [2.4\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (-2) should be [5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (0.6) should be [2\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (1.5) should be [2.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (-0.3) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (-0.3) should be [0.7\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (1.5) should be [1.5\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (1.5) should be [1.8\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (-0.3) should be [0\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-fonts/animations/font-size-interpolation-001.html.ini
+++ b/testing/web-platform/meta/css/css-fonts/animations/font-size-interpolation-001.html.ini
@@ -2,305 +2,380 @@
   expected:
     if (processor == "x86") and debug: CRASH
   [font-size interpolation]
     expected: FAIL
 
   [CSS Animations: property <font-size> from [4px\] to [14px\] at (0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [4px\] to [14px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (1.5) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [inherit\] to [20px\] at (-2) should be [50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from neutral to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (0.3) should be [27px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [initial\] to [20px\] at (0.3) should be [17.2px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [4px\] to [14px\] at (-0.3) should be [1px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (0.6) should be [24px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [4px\] to [14px\] at (0.6) should be [10px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from neutral to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (0.6) should be [10px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (0.3) should be [27px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [inherit\] to [20px\] at (0.6) should be [24px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from neutral to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [initial\] to [20px\] at (-0.3) should be [14.8px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.3) should be [27px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-2) should be [50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from neutral to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (1.5) should be [15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [initial\] to [20px\] at (-2) should be [8px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-0.3) should be [33px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [inherit\] to [20px\] at (0.3) should be [27px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (-0.3) should be [33px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from neutral to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (0.6) should be [18.4px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.6) should be [24px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [4px\] to [14px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [initial\] to [20px\] at (0.6) should be [18.4px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (1.5) should be [15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from neutral to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (1.5) should be [15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (0.3) should be [17.2px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [inherit\] to [20px\] at (1.5) should be [15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (-0.3) should be [14.8px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [initial\] to [20px\] at (1.5) should be [22px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [initial\] to [20px\] at (1.5) should be [22px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (1.5) should be [15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from neutral to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [4px\] to [14px\] at (1.5) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.3) should be [27px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [4px\] to [14px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from neutral to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.6) should be [24px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-2) should be [50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [initial\] to [20px\] at (0.6) should be [18.4px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [initial\] to [20px\] at (-2) should be [8px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (-2) should be [8px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.3) should be [27px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (-2) should be [50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [4px\] to [14px\] at (0.6) should be [10px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (-2) should be [50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [4px\] to [14px\] at (0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [initial\] to [20px\] at (0.3) should be [17.2px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [initial\] to [20px\] at (-0.3) should be [14.8px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from neutral to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-0.3) should be [33px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (1.5) should be [22px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from neutral to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (0.6) should be [24px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (1.5) should be [15px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.6) should be [24px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (-2) should be [50px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [4px\] to [14px\] at (1.5) should be [19px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-fonts/animations/font-size-interpolation-002.html.ini
+++ b/testing/web-platform/meta/css/css-fonts/animations/font-size-interpolation-002.html.ini
@@ -17,65 +17,80 @@
     expected: FAIL
 
   [Animation between "unset" and "20px" at progress -0.3]
     expected: FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-fonts/animations/font-size-interpolation-003.html.ini
+++ b/testing/web-platform/meta/css/css-fonts/animations/font-size-interpolation-003.html.ini
@@ -1,63 +1,78 @@
 [font-size-interpolation-003.html]
   expected:
     if (processor == "x86") and debug: CRASH
   [CSS Animations: property <font-size> from [10px\] to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [10px\] to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [10px\] to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [10px\] to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [10px\] to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (-0.3) should be [7px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [10px\] to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [10px\] to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [10px\] to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions: property <font-size> from [10px\] to [20px\] at (0.6) should be [16px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (1.5) should be [25px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Animations: property <font-size> from [10px\] to [20px\] at (-2) should be [0px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
   [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (0.3) should be [13px\]]
     expected:
       if (processor == "x86") and (os == "win"): FAIL
+      if processor == "aarch64": FAIL
 
--- a/testing/web-platform/meta/css/css-fonts/animations/font-variation-settings-interpolation.html.ini
+++ b/testing/web-platform/meta/css/css-fonts/animations/font-variation-settings-interpolation.html.ini
@@ -937,17 +937,17 @@
   [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.3) should be [\]]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1.5) should be [\]]
     expected: FAIL
 
   [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.5) should be [normal\]]
     expected:
-      if os == "win": FAIL
+      if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (1) should be [\]]
     expected: FAIL
 
   [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1.5) should be [\]]
     expected: FAIL
 
   [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (0) should be [\]]
@@ -1127,17 +1127,17 @@
   [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be [\]]
     expected: FAIL
 
   [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.6) should be [\]]
     expected: FAIL
 
   [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.5) should be ["test" 50\]]
     expected:
-      if os == "win": FAIL
+      if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1.5) should be [\]]
     expected: FAIL
 
   [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.3) should be [\]]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be [\]]
@@ -1206,17 +1206,17 @@
   [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.3) should be [\]]
     expected: FAIL
 
   [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (-0.3) should be ["aaaa" 0, "bbbb" 10, "cccc" 20\]]
     expected: FAIL
 
   [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.5) should be ["aaaa" 0, "bbbb" 10\]]
     expected:
-      if os == "win": FAIL
+      if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (0.7) should be [\]]
     expected: FAIL
 
   [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.5) should be [\]]
     expected: FAIL
 
   [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0) should be [\]]
@@ -1426,17 +1426,17 @@
   [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (-0.3) should be [\]]
     expected: FAIL
 
   [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1) should be [\]]
     expected: FAIL
 
   [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.5) should be ["dddd" 10, "eeee" 20, "ffff" 30\]]
     expected:
-      if os == "win": FAIL
+      if (os == "win") and (processor == "x86_64"): FAIL
 
   [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be [\]]
     expected: FAIL
 
   [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.6) should be [\]]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be [\]]
@@ -1772,17 +1772,17 @@
   [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.3) should be [\]]
     expected: FAIL
 
   [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.3) should be [\]]
     expected: FAIL
 
   [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.5) should be ["aaaa" 10, "bbbb" 20, "cccc" 30\]]
     expected:
-      if os == "win": FAIL
+      if (os == "win") and (processor == "x86_64"): FAIL
 
   [Web Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (-0.5) should be [\]]
     expected: FAIL
 
   [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (-0.3) should be [\]]
     expected: FAIL
 
   [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0) should be [\]]
@@ -1840,8 +1840,368 @@
     expected: FAIL
 
   [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be [\]]
     expected: FAIL
 
   [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (-0.3) should be [\]]
     expected: FAIL
 
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.7) should be ["test" 27\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.5) should be ["aaaa" 10, "bbbb" 20, "cccc" 30\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [inherit\] to ['test' 20\] at (-0.5) should be ["test" 35\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (0.7) should be ["test" 17\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.5) should be ["dddd" 10, "eeee" 20, "ffff" 30\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be ["test" 23\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.7) should be ["aaaa" 21, "bbbb" 17, "cccc" 13\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be ["test" 23\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1.5) should be ["aaaa" 45, "bbbb" 25, "cccc" 5\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (0.7) should be ["test" 17\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1.5) should be ["aaaa" 0, "bbbb" 10\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1.5) should be ["test" 35\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <font-variation-settings> from neutral to ["test" 20\] at (0.3) should be ["test" 13\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (1.5) should be ["test" 25\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (-0.5) should be ["test" 15\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ["aaaa" 3, "bbbb" 13, "cccc" 23\]]
+    expected:
+      if processor == "aarch64": FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (-0.5) should be ["test" 15\]]
+    expected:
+      if processor == "aarch64": FAIL