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Relative <base> in about:blank documents (tracking) - #61231

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Relative <base> in about:blank documents (tracking)#61231
annevk wants to merge 4 commits into
masterfrom
clone-base-url-about-blank-relative

Flip relative <base> expectations to resolve against the document's o…

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Community-TC Integration / wpt-firefox-nightly-results succeeded Jul 12, 2026 in 3m 30s

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: 2026-07-12T09:10:50.881Z
Resolved: 2026-07-12T09:14:20.588Z
Task Execution Time: 3 minutes, 29 seconds, 707 milliseconds
Task Status: completed
Reason Resolved: completed
TaskId: Uf9dEpf-RTGxzMiN5EcMyA
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 2026-07-12 09:10:50.974Z] Task ID: Uf9dEpf-RTGxzMiN5EcMyA
[taskcluster 2026-07-12 09:10:50.975Z] Worker ID: 7221377381091436297
[taskcluster 2026-07-12 09:10:50.975Z] Worker Group: us-central1-a
[taskcluster 2026-07-12 09:10:50.975Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-07-12 09:10:50.975Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-07-12 09:10:50.975Z] Worker Version: 46.1.0
[taskcluster 2026-07-12 09:10:50.975Z] Public IP: 34.66.209.138
[taskcluster 2026-07-12 09:10:50.975Z] Hostname: proj-wpt-ci-fbxbk5xrr12hb-ydtoa-pa

b1e71f63927a - Started downloading
b1e71f63927a - Downloaded in 0.034 seconds
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08c7e224535e - Started downloading
08c7e224535e - Downloaded in 0.046 seconds
66587c81b81a - Downloaded in 0.203 seconds
4f4fb700ef54 - Started downloading
4f4fb700ef54 - Downloaded in 0.001 seconds
32bbaaf98e4c - Started downloading
dd5257950bd4 - Started downloading

...(329 lines hidden)...

Failed to read: session.screen0.allowRemoteActions
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Failed to read: session.screen0.clientMenu.usePixmap
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Failed to read: session.screen0.tabs.usePixmap
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Failed to read: session.screen0.tabs.maxOver
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Failed to read: session.screen0.tabs.intitlebar
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Failed to read: session.screen0.focusModel
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Failed to read: session.screen0.tabFocusModel
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Failed to read: session.screen0.focusNewWindows
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Failed to read: session.screen0.focusSameHead
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Failed to read: session.screen0.rowPlacementDirection
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Failed to read: session.screen0.windowPlacement
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Failed to read: session.screen0.slit.acceptKdeDockapps
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Failed to read: session.screen0.slit.autoHide
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Failed to read: session.screen0.slit.placement
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Failed to read: session.screen0.slit.alpha
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Failed to read: session.screen0.slit.onhead
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Failed to read: session.screen0.slit.layer
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Failed to read: session.screen0.toolbar.autoHide
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Failed to read: session.screen0.toolbar.visible
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Failed to read: session.screen0.toolbar.alpha
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Failed to read: session.screen0.toolbar.layer
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Failed to read: session.screen0.toolbar.onhead
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Failed to read: session.screen0.iconbar.mode
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Failed to read: session.screen0.iconbar.iconTextPadding
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Failed to read: session.screen0.iconbar.usePixmap
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Warning: could not load product 'firefox_android' for argument registration: No module named 'mozrunner'
Warning: could not load product 'firefox' for argument registration: No module named 'mozleak'
 0:00.00 INFO Set tests_root to /home/test/web-platform-tests
 0:00.00 INFO Set metadata_root to /home/test/web-platform-tests
 0:00.00 INFO Set manifest_update to True
 0:00.00 INFO Set manifest_download to True
 0:37.16 INFO Identified 3 affected tests
 0:37.16 INFO Using certutil /usr/bin/certutil
 0:37.16 INFO Downloading geckodriver
 0:37.16 INFO Attempting to install webdriver from nightly
 0:37.50 INFO Extracted geckodriver to /home/test/web-platform-tests/_venv3/bin/geckodriver
 0:37.50 INFO Installed b'geckodriver 0.37.0 (969c51e9686e 2026-07-07 17:23 +0000)'
 0:43.08 INFO Getting profile data from git ref 0ae9827c4d7bc8b28ccbfa58324ded73b68dccf6
 0:43.30 INFO Test prefs downloaded to /home/test/web-platform-tests/_venv3/profiles/0ae9827c4d7bc8b28ccbfa58324ded73b68dccf6/154.0a1
 0:43.30 INFO Downloading OpenH264 plugin
mem avail: 14639 of 15806 MiB (92.62%), swap free:    0 of    0 MiB ( 0.00%)
 0:49.20 INFO Downloading openh264.json from git ref 0ae9827c4d7bc8b28ccbfa58324ded73b68dccf6
 0:49.25 INFO Downloading OpenH264 plugin from https://ciscobinary.openh264.org/openh264-linux64-652bdb7719f30b52b08e506645a7322ff1b2cc6f.zip
 0:49.50 INFO OpenH264 plugin installed to /home/test/web-platform-tests/_venv3/browsers/nightly/gmp-gmpopenh264/2.6.0
 0:49.50 INFO Using OpenH264 plugin in /home/test/web-platform-tests/_venv3/browsers/nightly/gmp-gmpopenh264/2.6.0
[1946] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 0:49.56 mozversion INFO application_buildid: 20260710095230
 0:49.56 mozversion INFO application_changeset: ddbfac25ce6f57153c11b6434706670fe2f196a4
 0:49.56 mozversion INFO application_display_name: Firefox Nightly
 0:49.56 mozversion INFO application_id: {ec8030f7-c20a-464f-9b0e-13a3a9e97384}
 0:49.56 mozversion INFO application_name: Firefox
 0:49.56 mozversion INFO application_remotingname: firefox-nightly
 0:49.56 mozversion INFO application_repository: https://hg.mozilla.org/mozilla-central
 0:49.56 mozversion INFO application_vendor: Mozilla
 0:49.56 mozversion INFO application_version: 154.0a1
 0:49.56 mozversion INFO platform_buildid: 20260710095230
 0:49.56 mozversion INFO platform_changeset: ddbfac25ce6f57153c11b6434706670fe2f196a4
 0:49.56 mozversion INFO platform_repository: https://hg.mozilla.org/mozilla-central
 0:49.56 mozversion INFO platform_version: 154.0a1
 0:59.31 INFO Installed font: Ahem.ttf
 1:00.25 wptserve INFO Starting http server on http://127.0.0.1:8000
 1:00.30 wptserve INFO Starting http server on http://127.0.0.1:8002
 1:00.33 wptserve INFO Starting https server on https://127.0.0.1:8445
 1:00.34 wptserve INFO Starting http server on http://127.0.0.1:8001
 1:00.35 wptserve INFO Starting https server on https://127.0.0.1:8443
 1:00.35 wptserve INFO Starting http server on http://127.0.0.1:8003
 1:00.38 wptserve INFO Starting https server on https://127.0.0.1:8446
 1:00.38 wptserve INFO Starting https server on https://127.0.0.1:8444
 1:00.38 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:00.38 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:00.38 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:00.38 wptserve INFO Starting http2 server on https://127.0.0.1:9000
 1:00.39 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:00.39 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:00.39 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:00.47 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:00.73 SUITE_START: web-platform-test - running 3 tests
 1:12.48 INFO Using 1 child processes
 1:12.50 INFO Setting up ssl
 1:12.52 certutil Full command: /usr/bin/certutil -N -d /tmp/tmputy_4acm.mozrunner -f /tmp/tmputy_4acm.mozrunner/.crtdbpw
certutil b''
 1:12.54 certutil b''
 1:12.55 certutil b'\nCertificate Nickname                                         Trust Attributes\n                                                             SSL,S/MIME,JAR/XPI\n\nweb-platform-tests                                           CT,, \n'
 1:12.55 INFO Application command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank -profile /tmp/tmpow7mznl1
 1:12.56 INFO Starting runner
 1:12.57 pid:2050 Full command: /home/test/build/firefox/firefox --marionette --remote-allow-system-access about:blank
pid:2050 [2050] Sandbox: CanCreateUserNamespace() clone() failure: EPERM
 1:13.11 pid:2050 1783847650575	Marionette	INFO	Marionette enabled
 1:13.22 pid:2050 1783847650686	Marionette	INFO	Listening on port 51415
Failed to read: session.screen0.titlebar.left
Setting default value
Failed to read: session.screen0.titlebar.right
Setting default value
 1:15.73 pid:2050 console.error: services.settings:
 1:15.73 pid:2050   Message: EmptyDatabaseError: "main/nimbus-desktop-experiments" has not been synced yet
 1:15.73 pid:2050   Stack:
 1:15.73 pid:2050     EmptyDatabaseError@resource://services-settings/Database.sys.mjs:19:5
 1:15.73 pid:2050 list@resource://services-settings/Database.sys.mjs:96:13
 1:16.31 TEST_START: /dom/nodes/Document-base-url-not-live.window.html
 1:16.87 TEST_END: Test OK. Subtests passed 0/2. Unexpected 2
FAIL about:blank base URL is not live - assert_equals: child base URL is a snapshot from creation, not the container's current base URL expected "http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.html" but got "about:blank"
notLiveTest/<@http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.js:47:18
FAIL about:srcdoc base URL is not live - assert_equals: child base URL is a snapshot from creation, not the container's current base URL expected "http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.html" but got "http://example.com/changed/"
notLiveTest/<@http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.js:47:18

 1:16.87 TEST_START: /dom/nodes/Document-cloneNode-about-base-url-relative.window.html
 1:16.87 INFO Closing window 2a30f7dd-8cd5-4084-a0fd-f06f34541186
 1:17.10 TEST_END: Test OK. Subtests passed 2/2. Unexpected 0
 1:17.10 TEST_START: /dom/nodes/Document-cloneNode-srcdoc-base-url.window.html
 1:17.11 INFO Closing window f4bb8552-e7ad-4f6d-a550-44beedd87e98
 1:17.41 TEST_END: Test OK. Subtests passed 0/2. Unexpected 2
FAIL A relative <base> in an about:srcdoc document resolves against about:srcdoc - assert_equals: expected "about:srcdoc" but got "http://web-platform.test:8000/dom/nodes/sub/"
@http://web-platform.test:8000/dom/nodes/Document-cloneNode-srcdoc-base-url.window.js:24:16
FAIL Clone of an about:srcdoc document with a relative <base> - assert_equals: shallow expected "about:srcdoc" but got "http://web-platform.test:8000/dom/nodes/sub/"
@http://web-platform.test:8000/dom/nodes/Document-cloneNode-srcdoc-base-url.window.js:31:16

 1:17.41 INFO No more tests
 1:17.42 pid:2050 1783847654887	Marionette	INFO	Stopped listening on port 51415
 1:17.97 INFO Browser exited with return code 0
 1:17.75 INFO Closing logging queue
 1:17.75 INFO queue closed
 1:17.98 SUITE_END

web-platform-test
~~~~~~~~~~~~~~~~~
Ran 9 checks (6 subtests, 3 tests)
Expected results: 5
Unexpected results: 4
  subtest: 4 (4 fail)

Error Summary
-------------
/dom/nodes/Document-base-url-not-live.window.html
  FAIL about:blank base URL is not live - assert_equals: child base URL is a snapshot from creation, not the container's current base URL expected "http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.html" but got "about:blank"
notLiveTest/<@http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.js:47:18
  FAIL about:srcdoc base URL is not live - assert_equals: child base URL is a snapshot from creation, not the container's current base URL expected "http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.html" but got "http://example.com/changed/"
notLiveTest/<@http://web-platform.test:8000/dom/nodes/Document-base-url-not-live.window.js:47:18
/dom/nodes/Document-cloneNode-srcdoc-base-url.window.html
  FAIL A relative <base> in an about:srcdoc document resolves against about:srcdoc - assert_equals: expected "about:srcdoc" but got "http://web-platform.test:8000/dom/nodes/sub/"
@http://web-platform.test:8000/dom/nodes/Document-cloneNode-srcdoc-base-url.window.js:24:16
  FAIL Clone of an about:srcdoc document with a relative <base> - assert_equals: shallow expected "about:srcdoc" but got "http://web-platform.test:8000/dom/nodes/sub/"
@http://web-platform.test:8000/dom/nodes/Document-cloneNode-srcdoc-base-url.window.js:31:16
 1:17.98 INFO Got 2 unexpected results, with 0 unexpected passes
 1:17.98 wptserve INFO Stopped http server on 127.0.0.1:8001
 1:17.98 wptserve INFO Stopped http server on 127.0.0.1:8002
 1:17.98 wptserve INFO Stopped http server on 127.0.0.1:8443
 1:17.98 wptserve INFO Stopped http server on 127.0.0.1:8003
 1:17.98 wptserve INFO Stopped http server on 127.0.0.1:8000
 1:17.99 wptserve INFO Stopped http server on 127.0.0.1:8444
 1:17.99 wptserve INFO Stopped http server on 127.0.0.1:8445
 1:17.99 wptserve INFO Stopped http server on 127.0.0.1:8446
 1:18.00 wptserve INFO Stopped http server on 127.0.0.1:9000
 1:18.01 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
 1:18.25 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
 1:18.25 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
 1:18.29 INFO Removed font: Ahem.ttf
 1:18.31 INFO Closing logging queue
 1:18.31 INFO queue closed
 1:18.31 INFO Tolerating 2 unexpected results
[taskcluster 2026-07-12 09:14:18.751Z] === Task Finished ===
[taskcluster 2026-07-12 09:14:19.779Z] Successful task run with exit code: 0 completed in 208.807 seconds
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