layout: Support content: <image> on non-pseudo-elements
#56912
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: 2025-12-30T11:30:25.360Z
Resolved: 2025-12-30T11:34:21.314Z
Task Execution Time: 3 minutes, 55 seconds, 954 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 2025-12-30 11:30:25.484Z] Task ID: PRCEBv-hSZyIu8NB7HNsxA
[taskcluster 2025-12-30 11:30:25.484Z] Worker ID: 379924001113115002
[taskcluster 2025-12-30 11:30:25.484Z] Worker Group: us-central1-c
[taskcluster 2025-12-30 11:30:25.485Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2025-12-30 11:30:25.485Z] Worker Pool: proj-wpt/ci
[taskcluster 2025-12-30 11:30:25.485Z] Worker Version: 46.1.0
[taskcluster 2025-12-30 11:30:25.485Z] Public IP: 34.42.216.139
[taskcluster 2025-12-30 11:30:25.485Z] Hostname: proj-wpt-ci-fjiaaqg9rxws-eujxnbwpq
ac811f28856d - Started downloading
8f84a9f2102e - Started downloading
ac811f28856d - Downloaded in 0.035 seconds
40516d781e70 - Started downloading
44ebbf800033 - Started downloading
44ebbf800033 - Downloaded in 0.045 seconds
8f84a9f2102e - Downloaded in 0.357 seconds
4f4fb700ef54 - Started downloading
4f4fb700ef54 - Downloaded in 0.002 seconds
a8884b21e40e - Started downloading
79c347416ee8 - Started downloading
...(1519 lines hidden)...
1:05.19 pid:4686 1767094457185 Marionette INFO No differences allowed
1:05.19 TEST_END: PASS
1:05.19 TEST_START: /css/css-content/element-replacement-root-canvas-bg-from-body.html
1:05.19 pid:4686 1767094457189 Marionette INFO Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
1:05.33 pid:4686 1767094457333 Marionette INFO No differences allowed
1:05.35 TEST_END: FAIL, expected PASS
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
1:05.35 TEST_START: /css/css-content/element-replacement-root-canvas-bg.html
1:05.36 pid:4686 1767094457354 Marionette INFO Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
1:05.49 pid:4686 1767094457487 Marionette INFO No differences allowed
1:05.51 TEST_END: FAIL, expected PASS
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
1:05.51 TEST_START: /css/css-content/element-replacement-root.html
1:05.51 pid:4686 1767094457509 Marionette INFO Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
1:05.57 pid:4686 1767094457572 Marionette INFO No differences allowed
1:05.59 TEST_END: FAIL, expected PASS
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
1:05.59 INFO No more tests
1:05.62 pid:4686 1767094457619 Marionette INFO Stopped listening on port 52751
1:06.25 INFO Browser exited with return code -15
1:06.12 INFO Closing logging queue
1:06.13 INFO queue closed
1:06.26 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 40 checks (40 tests)
Expected results: 10
Unexpected results: 30
test: 30 (30 fail)
Unexpected Results
------------------
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg-from-body.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-from-body.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 480000 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root-canvas-bg.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg.html == http://web-platform.test:8000/css/css-content/element-replacement-root-canvas-bg-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
FAIL /css/css-content/element-replacement-root.html - Testing http://web-platform.test:8000/css/css-content/element-replacement-root.html == http://web-platform.test:8000/css/css-content/element-replacement-root-ref.html
Found 10809 pixels different, maximum difference per channel 255
1:06.26 INFO Got 30 unexpected results, with 0 unexpected passes
1:06.26 wptserve INFO Stopped http server on 127.0.0.1:8000
1:06.26 wptserve INFO Stopped http server on 127.0.0.1:8002
1:06.26 wptserve INFO Stopped http server on 127.0.0.1:8001
1:06.28 wptserve INFO Stopped http server on 127.0.0.1:8443
1:06.28 wptserve INFO Stopped http server on 127.0.0.1:8003
1:06.28 wptserve INFO Stopped http server on 127.0.0.1:8444
1:06.28 wptserve INFO Stopped http server on 127.0.0.1:8445
1:06.28 wptserve INFO Stopped http server on 127.0.0.1:8446
1:06.29 wptserve INFO Stopped http server on 127.0.0.1:9000
1:06.29 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
1:06.40 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
1:06.40 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
1:06.45 INFO Removed font: Ahem.ttf
1:06.47 INFO Closing logging queue
1:06.47 INFO queue closed
1:06.48 INFO ::: Ran 10 of expected 10 iterations.
1:06.48 INFO ## All results ##
1:06.48 INFO ### /css/css-content/element-replacement-dynamic.html ###
1:06.48 INFO | Subtest | Results | Messages |
1:06.48 INFO |---------|---------|----------|
1:06.48 INFO | | PASS | |
1:06.48 INFO
1:06.48 INFO ### /css/css-content/element-replacement-root-canvas-bg-from-body.html ###
1:06.48 INFO | Subtest | Results | Messages |
1:06.48 INFO |---------|---------|----------|
1:06.48 INFO | | FAIL | |
1:06.48 INFO
1:06.48 INFO ### /css/css-content/element-replacement-root-canvas-bg.html ###
1:06.48 INFO | Subtest | Results | Messages |
1:06.48 INFO |---------|---------|----------|
1:06.48 INFO | | FAIL | |
1:06.48 INFO
1:06.48 INFO ### /css/css-content/element-replacement-root.html ###
1:06.48 INFO | Subtest | Results | Messages |
1:06.48 INFO |---------|---------|----------|
1:06.48 INFO | | FAIL | |
1:06.48 INFO
1:06.48 INFO ::: Running tests in a loop with restarts 10 times : PASS
1:06.48 INFO :::
1:06.48 INFO ::: Test verification PASS
1:06.48 INFO :::
mem avail: 14629 of 15806 MiB (92.56%), swap free: 0 of 0 MiB ( 0.00%)
[taskcluster 2025-12-30 11:34:20.208Z] === Task Finished ===
[taskcluster 2025-12-30 11:34:20.566Z] Successful task run with exit code: 0 completed in 235.084 seconds