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Merged
chromium-wpt-export-bot merged 1 commit into from
Jan 5, 2026

[animation-trigger] Don't update attachments if layout is needed

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Merged

[animation-trigger] Don't update attachments if layout is needed #56989

[animation-trigger] Don't update attachments if layout is needed
f118238
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Community-TC Integration / wpt-firefox-nightly-stability succeeded Jan 5, 2026 in 5m 34s

Community-TC (pull_request)

Verify that all tests affected by a pull request are stable when executed in firefox.

Details

View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster

Task Status

Started: 2026-01-05T17:09:57.304Z
Resolved: 2026-01-05T17:13:19.200Z
Task Execution Time: 3 minutes, 21 seconds, 896 milliseconds
Task Status: completed
Reason Resolved: completed
RunId: 0

Artifacts

- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md

WPT Command: python3 ./wpt run --channel=nightly --verify --verify-no-chaos-mode --verify-repeat-loop=0 --verify-repeat-restart=10 --github-checks-text-file=/home/test/artifacts/checkrun.md --affected base_head --log-mach-level=info --log-mach=- -y --no-pause --no-restart-on-unexpected --install-fonts --verify-log-full --no-headless --binary=/home/test/build/firefox/firefox firefox

[taskcluster 2026-01-05 17:09:57.449Z] Task ID: NTtCD1iUS4SHQgJs73c5zQ
[taskcluster 2026-01-05 17:09:57.450Z] Worker ID: 491180619199828249
[taskcluster 2026-01-05 17:09:57.450Z] Worker Group: us-east1-c
[taskcluster 2026-01-05 17:09:57.450Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-05 17:09:57.450Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-05 17:09:57.450Z] Worker Version: 46.1.0
[taskcluster 2026-01-05 17:09:57.450Z] Public IP: 34.26.139.202
[taskcluster 2026-01-05 17:09:57.450Z] Hostname: proj-wpt-ci-gd9d5cncqqilcf1bhkfnqw

ac811f28856d - Started downloading
ac811f28856d - Downloaded in 0.037 seconds
8f84a9f2102e - Started downloading
40516d781e70 - Started downloading
44ebbf800033 - Started downloading
44ebbf800033 - Downloaded in 0.05 seconds
8f84a9f2102e - Downloaded in 0.236 seconds
4f4fb700ef54 - Started downloading
4f4fb700ef54 - Downloaded in 0.001 seconds
a8884b21e40e - Started downloading
79c347416ee8 - Started downloading

...(1242 lines hidden)...

  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
 1:08.74 INFO Got 9 unexpected results, with 0 unexpected passes
 1:08.74 INFO Repetition 10 / 10
 1:08.74 SUITE_START: web-platform-test - running 1 tests
 1:08.74 INFO Using 1 child processes
 1:08.75 INFO Setting up ssl
 1:08.78 certutil b''
 1:08.80 certutil b''
 1:08.81 certutil b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
 1:08.81 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmprz7a_g89
 1:08.82 INFO Starting runner
 1:08.82 pid:4385 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:4385 [4385] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 1:09.45 pid:4385 1767633192084	Marionette	INFO	Marionette enabled
 1:09.59 pid:4385 1767633192222	Marionette	INFO	Listening on port 59327
 1:09.59 pid:4385 [Parent 4385, Main Thread] WARNING: Failed to create DBus proxy for org.a11y.Bus: Could not connect: Connection refused
 1:09.59 pid:4385 : 'glib warning', file /builds/worker/checkouts/gecko/toolkit/xre/nsSigHandlers.cpp:201
 1:09.59 pid:4385 ** (firefox-nightly:4385): WARNING **: 17:13:12.231: Failed to create DBus proxy for org.a11y.Bus: Could not connect: Connection refused
 1:10.84 pid:4385 console.error: services.settings:
 1:10.84 pid:4385   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
 1:10.84 pid:4385   Stack:
 1:10.85 pid:4385     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
 1:10.85 pid:4385 list@resource://services-settings/Database.sys.mjs:96:13
 1:11.18 pid:4385 console.warn: BackupService: "There was an error while trying to get the Document's directory" [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIProperties.get]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: resource:///modules/backup/BackupService.sys.mjs :: get docsDirFolderPath :: line 1245"  data: no]
 1:11.46 TEST_START: /scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html
 1:12.00 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20

 1:12.00 INFO No more tests
 1:12.01 pid:4385 1767633194644	Marionette	INFO	Stopped listening on port 59327
 1:12.85 INFO Browser exited with return code -15
 1:12.70 INFO Closing logging queue
 1:12.70 INFO queue closed
 1:12.86 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 20 checks (10 subtests, 10 tests)
Expected results: 10
Unexpected results: 10
  subtest: 10 (10 fail)

Unexpected Results
------------------
/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
  FAIL Toggling trigger on starts controlling attached animation; toggling off stops - assert_equals: expected (string) "none" but got (undefined) undefined
@http://web-platform.test:8000/scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html:103:20
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
promise_test/tests.promise_tests</<@http://web-platform.test:8000/resources/testharness.js:738:36
promise_test/tests.promise_tests<@http://web-platform.test:8000/resources/testharness.js:737:20
 1:12.86 INFO Got 10 unexpected results, with 0 unexpected passes
 1:12.86 wptserve INFO Stopped http server on 127.0.0.1:8001
 1:12.86 wptserve INFO Stopped http server on 127.0.0.1:8002
 1:12.86 wptserve INFO Stopped http server on 127.0.0.1:8000
 1:12.86 wptserve INFO Stopped http server on 127.0.0.1:8003
 1:12.87 wptserve INFO Stopped http server on 127.0.0.1:8444
 1:12.88 wptserve INFO Stopped http server on 127.0.0.1:8443
 1:12.88 wptserve INFO Stopped http server on 127.0.0.1:9000
 1:12.88 wptserve INFO Stopped http server on 127.0.0.1:8446
 1:12.88 wptserve INFO Stopped http server on 127.0.0.1:8445
 1:12.88 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:13.09 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:13.09 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:13.15 INFO Removed font: Ahem.ttf
 1:13.18 INFO Closing logging queue
 1:13.18 INFO queue closed
 1:13.19 INFO ::: Ran 10 of expected 10 iterations.
 1:13.19 INFO ## All results ##

 1:13.19 INFO ### /scroll-animations/animation-trigger/timeline-trigger-toggle.tentative.html ###
 1:13.19 INFO |                                     Subtest                                     | Results |                                 Messages                                |
 1:13.19 INFO |---------------------------------------------------------------------------------|---------|-------------------------------------------------------------------------|
 1:13.19 INFO |                                                                                 | OK      |                                                                         |
 1:13.19 INFO | `Toggling trigger on starts controlling attached animation; toggling off stops` | FAIL    | `assert_equals: expected (string) "none" but got (undefined) undefined` |
 1:13.19 INFO 
 1:13.19 INFO ::: Running tests in a loop with restarts 10 times : PASS
 1:13.19 INFO :::
 1:13.19 INFO ::: Test verification PASS
 1:13.19 INFO :::
[taskcluster 2026-01-05 17:13:17.964Z] === Task Finished ===
[taskcluster 2026-01-05 17:13:18.386Z] Successful task run with exit code: 0 completed in 200.94 seconds
View more details on Community-TC Integration