--- a/testing/web-platform/tests/.travis.yml
+++ b/testing/web-platform/tests/.travis.yml
@@ -1,22 +1,14 @@
 dist: trusty
 sudo: required
 language: python
 branches:
   only:
     - master
-addons:
-  hosts:
-    - web-platform.test
-    - www.web-platform.test
-    - www1.web-platform.test
-    - www2.web-platform.test
-    - xn--n8j6ds53lwwkrqhv28a.web-platform.test
-    - xn--lve-6lad.web-platform.test
 before_install:
   # This needs be sourced as it sets various env vars
   - . ./tools/ci/before_install.sh
 install:
   - ./tools/ci/install.sh
 matrix:
   # The use of `if` conditionals to exclude jobs from master should align with
   # jobs unconditionally listed by `./wpt test-jobs`, regardless of affected
@@ -59,17 +51,16 @@ matrix:
         apt:
           packages:
             - libnss3-tools
       env:
         - JOB=stability SCRIPT=tools/ci/ci_stability.sh PRODUCT=firefox:nightly
     - name: "stability (Chrome Dev)"
       if: type = pull_request
       os: linux
-      sudo: required
       python: "2.7"
       addons:
         apt:
           packages:
             - libappindicator1
             - fonts-liberation
       env:
         - JOB=stability SCRIPT=tools/ci/ci_stability.sh PRODUCT=chrome:dev

--- a/testing/web-platform/tests/tools/serve/test_functional.py
+++ b/testing/web-platform/tests/tools/serve/test_functional.py
@@ -50,17 +50,17 @@ def test_subprocess_exit(server_subproce
     def target():
         # By default, the server initially creates a child process to validate
         # local system configuration. That process is unrelated to the behavior
         # under test, but at the time of this writing, the parent uses the same
         # constructor that is also used to create the long-running processes
         # which are relevant to this functionality. Disable the check so that
         # the constructor is only used to create relevant processes.
         with open(tempfile_name, 'w') as handle:
-            json.dump({"check_subdomains": False}, handle)
+            json.dump({"check_subdomains": False, "bind_address": False}, handle)
 
         # The `logger` module from the wptserver package uses a singleton
         # pattern which resists testing. In order to avoid conflicting with
         # other tests which rely on that module, pre-existing state is
         # discarded through an explicit "reload" operation.
         reload(logger)
 
         serve.run(config_path=tempfile_name)