Bug 1569648 - Remove a bogus assertion. r=dholbert
authorEmilio Cobos Álvarez <emilio@crisal.io>
Wed, 14 Aug 2019 16:41:20 +0000
changeset 487987 dee7db615c4e59d244fdd679a1eeef1c03187c2e
parent 487986 0fe31de4a2712c918b59fba1c9de7e20db92d3bd
child 487988 3f93f3c645b92d2cec2137f831f555eeab79360f
push id36434
push usercbrindusan@mozilla.com
push dateThu, 15 Aug 2019 09:44:30 +0000
treeherdermozilla-central@144fbfb409b7 [default view] [failures only]
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Bug 1569648 - Remove a bogus assertion. r=dholbert There's no guarantee at all that the filter URI is valid, it just so happens that for regular CSS filters we bail out earlier. A bogus base URI makes relative uris just invalid, which triggers this assert. The assert was gracefully handled anyway, so no big deal. Differential Revision: https://phabricator.services.mozilla.com/D41952
new file mode 100644
--- /dev/null
+++ b/dom/canvas/crashtests/1569648.html
@@ -0,0 +1,5 @@
+<!doctype html>
+<base href="a:">
+  document.createElement("canvas").getContext("2d").filter = "url()";
--- a/dom/canvas/crashtests/crashtests.list
+++ b/dom/canvas/crashtests/crashtests.list
@@ -50,8 +50,9 @@ load 1334647-1.html
 skip-if(geckoview&&webrender) load 1349067.html # Bug 1563214 for GV+WR
 pref(gfx.offscreencanvas.enabled,true) load 1348976-1.html
 load 1357092.html
 load 1441613.html
 pref(gfx.offscreencanvas.enabled,true) load 1443671.html
 pref(gfx.offscreencanvas.enabled,true) load 1546390.html
 load 1549853.html
 load 1551745.html
+load 1569648.html
--- a/layout/svg/nsSVGFilterInstance.cpp
+++ b/layout/svg/nsSVGFilterInstance.cpp
@@ -133,18 +133,16 @@ nsSVGFilterFrame* nsSVGFilterInstance::G
     url = urlExtraReferrer->GetURI();
   } else {
     url = mFilter.AsUrl().ResolveLocalRef(mTargetContent);
   if (!url) {
-        "an StyleFilter of type URL should have a non-null URL");
     return nullptr;
   // Look up the filter element by URL.
   IDTracker idTracker;
   bool watch = false;
       mTargetContent, url, mFilter.AsUrl().ExtraData().ReferrerInfo(), watch);