[scoped-registry] Null registry element should get registry on adopt instead of insert#57213
Merged
Merged
Community-TC Integration / wpt-firefox-nightly-results-without-changes
succeeded
Jan 27, 2026 in 13m 14s
Community-TC (pull_request)
Collect results for all tests affected by a pull request in firefox but without the changes in the PR.
Details
View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster
Task Status
Started: 2026-01-27T04:01:09.145Z
Resolved: 2026-01-27T04:05:57.128Z
Task Execution Time: 4 minutes, 47 seconds, 983 milliseconds
Task Status: completed
Reason Resolved: completed
RunId: 0
Artifacts
- public/logs/live_backing.log
- public/logs/live.log
- public/results/checkrun.md
- public/results/wpt_report.json.gz
- public/results/wpt_screenshot.txt.gz
WPT Command: python3 ./wpt run --channel=nightly --no-fail-on-unexpected --log-wptreport=../artifacts/wpt_report.json --log-wptscreenshot=../artifacts/wpt_screenshot.txt --affected task_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 2026-01-27 04:01:09.208Z] Task ID: LjDDRHiqQiWywnEGyzRN8g
[taskcluster 2026-01-27 04:01:09.208Z] Worker ID: 7570643898311482310
[taskcluster 2026-01-27 04:01:09.208Z] Worker Group: us-east1-c
[taskcluster 2026-01-27 04:01:09.208Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-27 04:01:09.208Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-27 04:01:09.208Z] Worker Version: 46.1.0
[taskcluster 2026-01-27 04:01:09.208Z] Public IP: 34.73.162.61
[taskcluster 2026-01-27 04:01:09.208Z] Hostname: proj-wpt-ci-gprredudteonddyargacqg
[taskcluster 2026-01-27 04:01:10.226Z] === Task Starting ===
+ '[' '' ']'
+ '[' -d /etc/profile.d ']'
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/01-locale-fix.sh ']'
+ . /etc/profile.d/01-locale-fix.sh
+++ /usr/bin/locale-check C.UTF-8
++ eval
+ for i in /etc/profile.d/*.sh
+ '[' -r /etc/profile.d/apps-bin-path.sh ']'
+ . /etc/profile.d/apps-bin-path.sh
...(306 lines hidden)...
Setting default value
Failed to read: session.screen0.clientMenu.usePixmap
Setting default value
Failed to read: session.screen0.tabs.usePixmap
Setting default value
Failed to read: session.screen0.tabs.maxOver
Setting default value
Failed to read: session.screen0.tabs.intitlebar
Setting default value
Failed to read: session.screen0.focusModel
Setting default value
Failed to read: session.screen0.tabFocusModel
Setting default value
Failed to read: session.screen0.focusNewWindows
Setting default value
Failed to read: session.screen0.focusSameHead
Setting default value
Failed to read: session.screen0.rowPlacementDirection
Setting default value
Failed to read: session.screen0.colPlacementDirection
Setting default value
Failed to read: session.screen0.windowPlacement
Setting default value
Failed to read: session.screen0.slit.acceptKdeDockapps
Setting default value
Failed to read: session.screen0.slit.autoHide
Setting default value
Failed to read: session.screen0.slit.maxOver
Setting default value
Failed to read: session.screen0.slit.placement
Setting default value
Failed to read: session.screen0.slit.alpha
Setting default value
Failed to read: session.screen0.slit.onhead
Setting default value
Failed to read: session.screen0.slit.layer
Setting default value
Failed to read: session.screen0.toolbar.autoHide
Setting default value
Failed to read: session.screen0.toolbar.maxOver
Setting default value
Failed to read: session.screen0.toolbar.visible
Setting default value
Failed to read: session.screen0.toolbar.alpha
Setting default value
Failed to read: session.screen0.toolbar.layer
Setting default value
Failed to read: session.screen0.toolbar.onhead
Setting default value
Failed to read: session.screen0.toolbar.placement
Setting default value
Failed to read: session.screen0.toolbar.height
Setting default value
Failed to read: session.screen0.iconbar.mode
Setting default value
Failed to read: session.screen0.iconbar.alignment
Setting default value
Failed to read: session.screen0.iconbar.iconWidth
Setting default value
Failed to read: session.screen0.iconbar.iconTextPadding
Setting default value
Failed to read: session.screen0.iconbar.usePixmap
Setting default value
0:24.16 INFO Getting profile data from git ref f5171bd6a83982663d6bb33e78fa89237a42a8ac
0:24.73 INFO Test prefs downloaded to /home/test/web-platform-tests/_venv3/profiles/f5171bd6a83982663d6bb33e78fa89237a42a8ac/149.0a1
[1320] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
0:25.48 mozversion INFO application_buildid: 20260126213906
0:25.48 mozversion INFO application_changeset: fcad94c3a8e858a93e1fc2bc6e405846f526e8a8
0:25.48 mozversion INFO application_display_name: Firefox Nightly
0:25.48 mozversion INFO application_id: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
0:25.48 mozversion INFO application_name: Firefox
0:25.48 mozversion INFO application_remotingname: firefox-nightly
0:25.48 mozversion INFO application_repository: https://hg.mozilla.org/mozilla-central
0:25.48 mozversion INFO application_vendor: Mozilla
0:25.48 mozversion INFO application_version: 149.0a1
0:25.48 mozversion INFO platform_buildid: 20260126213906
0:25.48 mozversion INFO platform_changeset: fcad94c3a8e858a93e1fc2bc6e405846f526e8a8
0:25.48 mozversion INFO platform_repository: https://hg.mozilla.org/mozilla-central
0:25.48 mozversion INFO platform_version: 149.0a1
0:31.14 INFO Installed font: Ahem.ttf
0:32.08 wptserve INFO Starting http server on http://127.0.0.1:8000
0:32.09 wptserve INFO Starting http server on http://127.0.0.1:8002
0:32.12 wptserve INFO Starting http server on http://127.0.0.1:8001
0:32.12 wptserve INFO Starting http server on http://127.0.0.1:8003
0:32.15 wptserve INFO Starting https server on https://127.0.0.1:8446
0:32.15 wptserve INFO Starting https server on https://127.0.0.1:8443
0:32.15 wptserve INFO Starting https server on https://127.0.0.1:8445
0:32.16 wptserve INFO Starting https server on https://127.0.0.1:8444
0:32.17 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
0:32.17 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
0:32.17 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
0:32.18 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
0:32.19 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
0:32.19 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
0:32.19 wptserve INFO Starting http2 server on https://127.0.0.1:9000
0:32.28 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
0:32.57 SUITE_START: web-platform-test - running 1 tests
0:51.77 INFO Using 1 child processes
0:51.78 INFO Setting up ssl
0:51.80 certutil Full command: /usr/bin/certutil -N -d /tmp/tmpzn0_81ca.mozrunner -f /tmp/tmpzn0_81ca.mozrunner/.crtdbpw
certutil b''
0:51.82 certutil b''
0:51.83 certutil b'\nCertificate Nickname Trust Attributes\n SSL,S/MIME,JAR/XPI\n\nweb-platform-tests CT,, \n'
0:51.83 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmprk35a0xh
0:51.84 INFO Starting runner
0:51.84 pid:1424 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:1424 [1424] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
0:53.20 pid:1424 1769486746553 Marionette INFO Marionette enabled
0:53.43 pid:1424 1769486746784 Marionette INFO Listening on port 52951
Failed to read: session.screen0.titlebar.left
Setting default value
Failed to read: session.screen0.titlebar.right
Setting default value
0:56.48 pid:1424 console.error: services.settings:
0:56.48 pid:1424 Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
0:56.49 pid:1424 Stack:
0:56.49 pid:1424 EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
0:56.49 pid:1424 list@resource://services-settings/Database.sys.mjs:96:13
0:56.65 pid:1424 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]
0:56.92 TEST_START: /custom-elements/registries/element-mutation.html
0:57.44 TEST_END: Test OK. Subtests passed 0/4. Unexpected 4
FAIL An element with global registry should not change its registry when moved into a shadow tree with scoped registry. - Illegal constructor.
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:35:22
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:34:5
FAIL An element with scoped registry should not change its registry when moved out of the shadow tree. - Illegal constructor.
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:54:23
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:49:5
FAIL An element with scoped registry should not change its registry when moved into another shadow tree with different scoped registry. - Illegal constructor.
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:68:23
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:62:5
FAIL Declarative shadow DOM with shadowrootcustomelementregistry attribute without registry initialized should remain null registry after adoption. - assert_equals: expected (object) object "[object CustomElementRegistry]" but got (undefined) undefined
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:82:18
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:78:5
0:57.44 INFO No more tests
0:57.44 pid:1424 1769486750796 Marionette INFO Stopped listening on port 52951
0:58.08 pid:1424 [GFX1-]: VideoBridgeParent receives IPC close with reason=AbnormalShutdown
0:58.15 INFO Browser exited with return code -15
0:58.02 INFO Closing logging queue
0:58.02 INFO queue closed
0:58.15 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 5 checks (4 subtests, 1 tests)
Expected results: 1
Unexpected results: 4
subtest: 4 (4 fail)
Unexpected Results
------------------
/custom-elements/registries/element-mutation.html
FAIL An element with global registry should not change its registry when moved into a shadow tree with scoped registry. - Illegal constructor.
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:35:22
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:34:5
FAIL An element with scoped registry should not change its registry when moved out of the shadow tree. - Illegal constructor.
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:54:23
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:49:5
FAIL An element with scoped registry should not change its registry when moved into another shadow tree with different scoped registry. - Illegal constructor.
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:68:23
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:62:5
FAIL Declarative shadow DOM with shadowrootcustomelementregistry attribute without registry initialized should remain null registry after adoption. - assert_equals: expected (object) object "[object CustomElementRegistry]" but got (undefined) undefined
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:82:18
Test.prototype.step@http://web-platform.test:8000/resources/testharness.js:2869:25
test@http://web-platform.test:8000/resources/testharness.js:633:30
@http://web-platform.test:8000/custom-elements/registries/element-mutation.html:78:5
0:58.16 INFO Got 1 unexpected results, with 0 unexpected passes
0:58.16 wptserve INFO Stopped http server on 127.0.0.1:8000
0:58.16 wptserve INFO Stopped http server on 127.0.0.1:8001
0:58.16 wptserve INFO Stopped http server on 127.0.0.1:8002
0:58.16 wptserve INFO Stopped http server on 127.0.0.1:8003
0:58.16 wptserve INFO Stopped http server on 127.0.0.1:8443
0:58.16 wptserve INFO Stopped http server on 127.0.0.1:8444
0:58.17 wptserve INFO Stopped http server on 127.0.0.1:8445
0:58.17 wptserve INFO Stopped http server on 127.0.0.1:9000
0:58.17 wptserve INFO Stopped http server on 127.0.0.1:8446
0:58.17 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
0:58.60 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
0:58.60 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
0:58.64 INFO Removed font: Ahem.ttf
0:58.66 INFO Closing logging queue
0:58.66 INFO queue closed
0:58.67 INFO Tolerating 1 unexpected results
[taskcluster 2026-01-27 04:05:53.922Z] === Task Finished ===
[taskcluster 2026-01-27 04:05:55.003Z] Successful task run with exit code: 0 completed in 285.795 seconds
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