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Merged
chromium-wpt-export-bot merged 1 commit into from
May 12, 2026

[CSS Modules] Update fetching strategy

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Merged

[CSS Modules] Update fetching strategy #59805

[CSS Modules] Update fetching strategy
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Community-TC Integration / wpt-firefox-nightly-results succeeded May 12, 2026 in 16m 59s

Community-TC (pull_request)

Collect results for all tests affected by a pull request in firefox.

Details

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

Task Status

Started: 2026-05-12T04:14:42.314Z
Resolved: 2026-05-12T04:17:34.644Z
Task Execution Time: 2 minutes, 52 seconds, 330 milliseconds
Task Status: completed
Reason Resolved: completed
TaskId: bL1m9PRORWuFzDE2TR5qpA
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 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 2026-05-12 04:14:42.394Z] Task ID: bL1m9PRORWuFzDE2TR5qpA
[taskcluster 2026-05-12 04:14:42.394Z] Worker ID: 3875361415257596011
[taskcluster 2026-05-12 04:14:42.394Z] Worker Group: us-east4-c
[taskcluster 2026-05-12 04:14:42.394Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-05-12 04:14:42.394Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-05-12 04:14:42.394Z] Worker Version: 46.1.0
[taskcluster 2026-05-12 04:14:42.394Z] Public IP: 34.21.36.228
[taskcluster 2026-05-12 04:14:42.394Z] Hostname: proj-wpt-ci-z2nymycstk6hy-w3wcxx-g

[taskcluster 2026-05-12 04:14:43.236Z] === 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

...(373 lines hidden)...

mem avail: 14615 of 15806 MiB (92.47%), swap free:    0 of    0 MiB ( 0.00%)
 0:49.24 INFO Getting profile data from git ref c001029846a51b9e15898d0900ef0c7cafb55b26
 0:49.47 INFO Test prefs downloaded to /home/test/web-platform-tests/_venv3/profiles/c001029846a51b9e15898d0900ef0c7cafb55b26/152.0a1
 0:49.47 INFO Downloading OpenH264 plugin
 0:55.46 INFO Downloading openh264.json from git ref c001029846a51b9e15898d0900ef0c7cafb55b26
 0:55.52 INFO Downloading OpenH264 plugin from https://ciscobinary.openh264.org/openh264-linux64-652bdb7719f30b52b08e506645a7322ff1b2cc6f.zip
 0:55.63 INFO OpenH264 plugin installed to /home/test/web-platform-tests/_venv3/browsers/nightly/gmp-gmpopenh264/2.6.0
 0:55.63 INFO Using OpenH264 plugin in /home/test/web-platform-tests/_venv3/browsers/nightly/gmp-gmpopenh264/2.6.0
[1951] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 0:55.70 mozversion INFO application_buildid: 20260511160144
 0:55.70 mozversion INFO application_changeset: 5d85334c95eda979785d121004aa4a8ee310deb4
 0:55.70 mozversion INFO application_display_name: Firefox Nightly
 0:55.70 mozversion INFO application_id: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
 0:55.70 mozversion INFO application_name: Firefox
 0:55.70 mozversion INFO application_remotingname: firefox-nightly
 0:55.70 mozversion INFO application_repository: https://hg.mozilla.org/mozilla-central
 0:55.70 mozversion INFO application_vendor: Mozilla
 0:55.70 mozversion INFO application_version: 152.0a1
 0:55.70 mozversion INFO platform_buildid: 20260511160144
 0:55.70 mozversion INFO platform_changeset: 5d85334c95eda979785d121004aa4a8ee310deb4
 0:55.70 mozversion INFO platform_repository: https://hg.mozilla.org/mozilla-central
 0:55.70 mozversion INFO platform_version: 152.0a1
 1:06.97 INFO Installed font: Ahem.ttf
 1:08.14 wptserve INFO Starting http server on http://127.0.0.1:8000
 1:08.16 wptserve INFO Starting http server on http://127.0.0.1:8002
 1:08.20 wptserve INFO Starting https server on https://127.0.0.1:8444
 1:08.20 wptserve INFO Starting http server on http://127.0.0.1:8001
 1:08.24 wptserve INFO Starting https server on https://127.0.0.1:8443
 1:08.25 wptserve INFO Starting https server on https://127.0.0.1:8445
 1:08.25 wptserve INFO Starting http server on http://127.0.0.1:8003
 1:08.26 wptserve INFO Starting https server on https://127.0.0.1:8446
 1:08.27 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:08.27 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:08.27 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:08.27 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:08.27 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:08.27 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:08.27 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 1:08.35 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:08.59 SUITE_START: web-platform-test - running 7 tests
 1:23.72 INFO Using 1 child processes
 1:23.74 INFO Setting up ssl
 1:23.78 certutil Full command: /usr/bin/certutil -N -d /tmp/tmpbltb9v98.mozrunner -f /tmp/tmpbltb9v98.mozrunner/.crtdbpw
certutil b''
 1:23.80 certutil b''
 1:23.81 certutil b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
 1:23.81 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmpmuplqcl7
 1:23.83 INFO Starting runner
 1:23.83 pid:2055 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:2055 [2055] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 1:24.55 pid:2055 1778559442074	Marionette	INFO	Marionette enabled
 1:24.66 pid:2055 1778559442178	Marionette	INFO	Listening on port 57433
Failed to read: session.screen0.titlebar.left
Setting default value
Failed to read: session.screen0.titlebar.right
Setting default value
 1:27.61 pid:2055 console.error: services.settings:
 1:27.61 pid:2055   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
 1:27.62 pid:2055   Stack:
 1:27.62 pid:2055     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
 1:27.62 pid:2055 list@resource://services-settings/Database.sys.mjs:96:13
 1:28.33 TEST_START: /html/semantics/scripting-1/the-script-element/css-module/css-module-parse-error.html
 1:28.87 TEST_END: Test OK. Subtests passed 3/3. Unexpected 0
 1:28.87 TEST_START: /shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-disconnect-iframe.html
 1:28.88 INFO Closing window 2cdd184b-4150-46f2-b03d-1ce7a5b8b753
 1:29.22 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Destroying iframe during async adoptedStyleSheets fetch does not crash. - assert_equals: Before iframe destruction: one entry exists synchronously. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-disconnect-iframe.html:37:18

 1:29.22 TEST_START: /shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure-shared.html
 1:29.24 INFO Closing window 36d76c77-2a04-4898-bbd8-b1e7b2afa3ad
 1:29.62 TEST_END: Test OK. Subtests passed 1/3. Unexpected 2
FAIL Failed fetch initiated by shadowrootadoptedstylesheets stays failed for later declarative consumers. - assert_equals: First consumer: empty sheet present synchronously. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure-shared.html:27:18
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 Declarative failure: subsequent import() of the same URL rejects (consistent with imperative-first failure). - assert_equals: Declarative consumer: empty sheet remains after failed fetch. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure-shared.html:52:18

 1:29.62 TEST_START: /shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html
 1:29.62 INFO Closing window d92c53d3-c411-45f7-88c0-f2d819db228f
 1:29.85 TEST_END: Test OK. Subtests passed 3/6. Unexpected 3
FAIL Async fetch failure: empty placeholder sheet remains in adoptedStyleSheets. - assert_equals: Before fetch settles: expected 1 (empty) sheet. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html:30:18
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 Async fetch failure: failed sheet remains empty; valid specifier still works. - assert_equals: Two entries should be present synchronously (both empty pre-fetch). expected 2 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html:55:18
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 Async fetch failure: JS-duplicated references all remain after failure. - assert_equals: Sanity: declarative path produced one (empty) sheet synchronously. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html:77:18
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

 1:29.85 TEST_START: /shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-mutation-removed-still-updates.html
 1:29.87 INFO Closing window 6acdcd86-5815-4a09-a31e-05c6392bd1d9
 1:30.11 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Removed original_sheet is still updated by fetch and applies styles when re-adopted. - assert_equals: Before removal: expected 1 original_sheet. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-mutation-removed-still-updates.html:23:18
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

 1:30.11 TEST_START: /shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-modulepreload-failure.html
 1:30.12 INFO Closing window 35ee5e4e-29c2-461e-89b6-279a3b65bda2
 1:30.38 TEST_END: Test OK. Subtests passed 1/2. Unexpected 1
FAIL Mixed valid/invalid modulepreloads: failed ones are skipped and valid ones work. - assert_equals: Good URL should fire load. expected "load" but got "error"
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-modulepreload-failure.html:48:18

 1:30.38 TEST_START: /shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-placeholder-identity.html
 1:30.38 INFO Closing window 9788a0a9-9559-474f-940e-8c060fb5deee
 1:30.61 TEST_END: Test OK. Subtests passed 0/1. Unexpected 1
FAIL Sheet identity does not change after fetch completes. - assert_equals: Before fetch: expected 1 stylesheet(s). expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-placeholder-identity.html:16:18
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

 1:30.61 INFO No more tests
 1:30.61 pid:2055 1778559448134	Marionette	INFO	Stopped listening on port 57433
 1:31.24 INFO Browser exited with return code 0
 1:31.03 INFO Closing logging queue
 1:31.03 INFO queue closed
 1:31.25 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 24 checks (17 subtests, 7 tests)
Expected results: 15
Unexpected results: 9
  subtest: 9 (9 fail)

Error Summary
-------------
/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-disconnect-iframe.html
  FAIL Destroying iframe during async adoptedStyleSheets fetch does not crash. - assert_equals: Before iframe destruction: one entry exists synchronously. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-disconnect-iframe.html:37:18
/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure-shared.html
  FAIL Failed fetch initiated by shadowrootadoptedstylesheets stays failed for later declarative consumers. - assert_equals: First consumer: empty sheet present synchronously. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure-shared.html:27:18
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 Declarative failure: subsequent import() of the same URL rejects (consistent with imperative-first failure). - assert_equals: Declarative consumer: empty sheet remains after failed fetch. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure-shared.html:52:18
/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html
  FAIL Async fetch failure: empty placeholder sheet remains in adoptedStyleSheets. - assert_equals: Before fetch settles: expected 1 (empty) sheet. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html:30:18
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 Async fetch failure: failed sheet remains empty; valid specifier still works. - assert_equals: Two entries should be present synchronously (both empty pre-fetch). expected 2 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html:55:18
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 Async fetch failure: JS-duplicated references all remain after failure. - assert_equals: Sanity: declarative path produced one (empty) sheet synchronously. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-failure.html:77:18
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
/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-mutation-removed-still-updates.html
  FAIL Removed original_sheet is still updated by fetch and applies styles when re-adopted. - assert_equals: Before removal: expected 1 original_sheet. expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-async-fetch-mutation-removed-still-updates.html:23:18
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
/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-modulepreload-failure.html
  FAIL Mixed valid/invalid modulepreloads: failed ones are skipped and valid ones work. - assert_equals: Good URL should fire load. expected "load" but got "error"
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-modulepreload-failure.html:48:18
/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-placeholder-identity.html
  FAIL Sheet identity does not change after fetch completes. - assert_equals: Before fetch: expected 1 stylesheet(s). expected 1 but got 0
@http://web-platform.test:8000/shadow-dom/declarative/tentative/shadowrootadoptedstylesheets/shadowrootadoptedstylesheets-placeholder-identity.html:16:18
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
 1:31.25 INFO Got 6 unexpected results, with 0 unexpected passes
 1:31.25 wptserve INFO Stopped http server on 127.0.0.1:8000
 1:31.25 wptserve INFO Stopped http server on 127.0.0.1:8001
 1:31.25 wptserve INFO Stopped http server on 127.0.0.1:8002
 1:31.26 wptserve INFO Stopped http server on 127.0.0.1:8003
 1:31.27 wptserve INFO Stopped http server on 127.0.0.1:8443
 1:31.27 wptserve INFO Stopped http server on 127.0.0.1:8444
 1:31.27 wptserve INFO Stopped http server on 127.0.0.1:8445
 1:31.27 wptserve INFO Stopped http server on 127.0.0.1:8446
 1:31.27 wptserve INFO Stopped http server on 127.0.0.1:9000
 1:31.27 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:31.62 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:31.62 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:31.67 INFO Removed font: Ahem.ttf
 1:31.70 INFO Closing logging queue
 1:31.70 INFO queue closed
 1:31.70 INFO Tolerating 6 unexpected results
[taskcluster 2026-05-12 04:17:32.659Z] === Task Finished ===
[taskcluster 2026-05-12 04:17:33.827Z] Successful task run with exit code: 0 completed in 171.434 seconds
View more details on Community-TC Integration