selectedcontent element mutation record test is wrong #55849
Community-TC Integration / wpt-chrome-dev-results
succeeded
Jan 14, 2026 in 2m 39s
Community-TC (pull_request)
Collect results for all tests affected by a pull request in chrome.
Details
View task in Taskcluster | View logs in Taskcluster | View task group in Taskcluster
Task Status
Started: 2026-01-14T17:47:17.085Z
Resolved: 2026-01-14T17:49:56.139Z
Task Execution Time: 2 minutes, 39 seconds, 54 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=dev --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 --enable-swiftshader --install-browser --install-webdriver chrome
[taskcluster 2026-01-14 17:47:17.239Z] Task ID: a_JWgGQiSwiuodbSEDPsqQ
[taskcluster 2026-01-14 17:47:17.239Z] Worker ID: 5043553538698539823
[taskcluster 2026-01-14 17:47:17.239Z] Worker Group: us-east4-a
[taskcluster 2026-01-14 17:47:17.239Z] Worker Node Type: projects/757942385826/machineTypes/n2-standard-4
[taskcluster 2026-01-14 17:47:17.239Z] Worker Pool: proj-wpt/ci
[taskcluster 2026-01-14 17:47:17.239Z] Worker Version: 46.1.0
[taskcluster 2026-01-14 17:47:17.239Z] Public IP: 136.107.8.137
[taskcluster 2026-01-14 17:47:17.239Z] Hostname: proj-wpt-ci-qbt3je3bqeoe6tnv2b9gva
[taskcluster 2026-01-14 17:47:18.236Z] === 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
...(391 lines hidden)...
Setting default value
Failed to read: session.screen0.clickRaises
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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.colPlacementDirection
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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.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.toolbar.placement
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Failed to read: session.screen0.toolbar.height
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Failed to read: session.screen0.iconbar.alignment
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Failed to read: session.screen0.iconbar.usePixmap
Setting default value
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
mem avail: 14485 of 15806 MiB (91.65%), swap free: 0 of 0 MiB ( 0.00%)
0:52.41 INFO Identified 1 affected tests
0:52.41 INFO Installing browser
0:52.43 INFO Downloading Chrome for Testing from https://storage.googleapis.com/chrome-for-testing-public/145.0.7572.2/linux64/chrome-linux64.zip
0:55.61 INFO Downloading Mojo bindings from https://storage.googleapis.com/chrome-for-testing-public/145.0.7572.2/mojojs.zip
0:55.66 INFO MojoJS enabled automatically (mojojs_path: /home/test/web-platform-tests/_venv3/mojojs/gen)
0:55.69 INFO Download info for matching ChromeDriver version found.
0:55.69 INFO Downloading ChromeDriver from https://storage.googleapis.com/chrome-for-testing-public/145.0.7572.2/linux64/chromedriver-linux64.zip
0:55.88 INFO Automatically turning on experimental features for Chrome Dev/Canary or Chromium trunk
1:02.06 INFO Installed font: Ahem.ttf
1:03.31 wptserve INFO Starting http server on http://127.0.0.1:8000
1:03.31 wptserve INFO Starting http server on http://127.0.0.1:8002
1:03.31 wptserve INFO Starting http server on http://127.0.0.1:8001
1:03.31 wptserve INFO Starting http server on http://127.0.0.1:8003
1:03.31 wptserve INFO Starting https server on https://127.0.0.1:8445
1:03.31 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
1:03.31 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
1:03.31 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
1:03.31 wptserve INFO Starting https server on https://127.0.0.1:8443
1:03.31 wptserve INFO Starting https server on https://127.0.0.1:8446
1:03.31 wptserve INFO Starting https server on https://127.0.0.1:8444
1:03.31 wptserve INFO Starting http2 server on https://127.0.0.1:9000
1:03.31 wptserve INFO Create socket on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
1:03.32 wptserve INFO Bind on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
1:03.32 wptserve INFO Listen on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
1:03.42 wptserve INFO Starting WebTransport over HTTP/3 server on 127.0.0.1:11000
1:03.70 SUITE_START: web-platform-test - running 1 tests
1:12.25 INFO Using 1 child processes
1:12.25 INFO Starting WebDriver: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=57101 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
1:12.26 INFO Got WebDriver port 46053
1:12.36 pid:2215 Full command: /home/test/web-platform-tests/_venv3/bin/chrome/chromedriver --port=57101 --ignore-explicit-port --url-base=/ --enable-chrome-logs --disable-build-check
pid:2215 Starting ChromeDriver 145.0.7572.2 (68918169e6422bcf7c8ca8cdea509443a35f96a4-refs/branch-heads/7572@{#6}) on port 0
1:12.36 pid:2215 Only local connections are allowed.
1:12.36 pid:2215 Please see https://chromedriver.chromium.org/security-considerations for suggestions on keeping ChromeDriver safe.
1:12.36 pid:2215 ChromeDriver was started successfully on port 46053.
1:12.36 INFO Webdriver started successfully.
1:12.36 INFO Starting runner
1:13.78 pid:2215 [1768412988.815][WARNING]: You are using an unsupported command-line switch: --disable-build-check. Please don't report bugs that cannot be reproduced with this switch removed.
1:13.82 pid:2215 [2263:2263:0114/174948.854157:WARNING:ui/gfx/linux/gbm_support_x11.cc:49] dri3 extension not supported.
1:13.83 pid:2215 [2263:2263:0114/174948.857765:WARNING:sandbox/policy/linux/sandbox_linux.cc:405] InitializeSandbox() called with multiple threads in process gpu-process.
Failed to read: session.screen0.titlebar.left
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1:13.93 pid:2215 [2232:2232:0114/174948.958987:ERROR:dbus/object_proxy.cc:573] Failed to call method: org.freedesktop.DBus.Properties.GetAll: object_path= /org/freedesktop/UPower/devices/DisplayDevice: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
1:13.93 pid:2215 [2232:2232:0114/174948.959002:WARNING:dbus/property.cc:174] GetAll request failed for: org.freedesktop.UPower.Device
1:13.98 pid:2215 [2232:2232:0114/174949.008991:WARNING:ui/base/idle/idle_linux.cc:113] None of the known D-Bus ScreenSaver services could be used.
1:14.08 TEST_START: /html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html
1:14.36 TEST_END: Test OK. Subtests passed 5/7. Unexpected 2
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test3 - assert_array_equals: test3 expected property 12 to be "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]" but got "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]" (expected array […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …] got […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …])
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test4 - assert_array_equals: test4 lengths differ, expected array […, "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"] | Removed: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 23, got […, "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"one\"]", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 24
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
1:14.36 INFO No more tests
1:14.41 INFO Closing logging queue
1:14.41 INFO queue closed
1:14.47 SUITE_END
web-platform-test
~~~~~~~~~~~~~~~~~
Ran 8 checks (7 subtests, 1 tests)
Expected results: 6
Unexpected results: 2
subtest: 2 (2 fail)
Unexpected Results
------------------
/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test3 - assert_array_equals: test3 expected property 12 to be "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]" but got "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]" (expected array […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …] got […, "Type: childList | Target: select | Added: [#text: \"\"]", "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer1\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer1\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner1\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Added: [#text: \"outer2\"]", "Type: childList | Target: selectedcontent | Added: [selectedcontent] | After: #text: \"outer2\"", "Type: childList | Target: selectedcontent | Added: [#text: \"inner2\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"outer1\", selectedcontent, #text: \"\"]", "Type: childList | Target: option | Added: [#text: \"option\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"option\"]", …])
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
FAIL MutationObserver records during parsing of <select> with <selectedcontent>: test4 - assert_array_equals: test4 lengths differ, expected array […, "Type: childList | Target: select | Added: [button] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"] | Removed: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 23, got […, "Type: childList | Target: button | Added: [#text: \"\"]", "Type: childList | Target: button | Added: [selectedcontent] | After: #text: \"\"", "Type: childList | Target: button | Added: [#text: \"\"] | After: selectedcontent", "Type: childList | Target: select | Added: [#text: \"\"] | After: button", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: option | Added: [#text: \"one\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"one\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: select | Added: [div] | After: #text: \"\"", "Type: childList | Target: div | Added: [#text: \"\"]", "Type: childList | Target: div | Added: [option] | After: #text: \"\"", "Type: childList | Target: selectedcontent | Removed: [#text: \"one\"]", "Type: childList | Target: option | Added: [#text: \"two\"]", "Type: childList | Target: selectedcontent | Added: [#text: \"two\"]", "Type: childList | Target: div | Added: [#text: \"\"] | After: option", "Type: childList | Target: select | Added: [#text: \"\"] | After: div", "Type: childList | Target: div#test4 | Added: [#text: \"\"] | After: select"] length 24
at Test.<anonymous> (http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:463:5)
at Test.step (http://web-platform.test:8000/resources/testharness.js:2869:25)
at test (http://web-platform.test:8000/resources/testharness.js:633:30)
at http://web-platform.test:8000/html/semantics/forms/the-select-element/customizable-select/selectedcontent-mutations.html:452:3
1:14.47 INFO Got 1 unexpected results, with 0 unexpected passes
1:14.47 wptserve INFO Stopped http server on 127.0.0.1:8000
1:14.47 wptserve INFO Stopped http server on 127.0.0.1:8001
1:14.48 wptserve INFO Stopped http server on 127.0.0.1:8443
1:14.51 wptserve INFO Stopped http server on 127.0.0.1:8444
1:14.51 wptserve INFO Stopped http server on 127.0.0.1:8003
1:14.51 wptserve INFO Stopped http server on 127.0.0.1:8002
1:14.51 wptserve INFO Stopped http server on 127.0.0.1:8445
1:14.51 wptserve INFO Stopped http server on 127.0.0.1:8446
1:14.51 wptserve INFO Stopped http server on 127.0.0.1:9000
1:14.51 wptserve INFO Stopped WebTransport over HTTP/3 server on 127.0.0.1:11000
1:14.71 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8889))
1:14.71 wptserve INFO Close on: (<AddressFamily.AF_INET: 2>, <SocketKind.SOCK_STREAM: 1>, 6, '', ('127.0.0.1', 8888))
1:14.75 INFO Removed font: Ahem.ttf
1:14.78 INFO Closing logging queue
1:14.78 INFO queue closed
1:14.78 INFO Tolerating 1 unexpected results
[taskcluster 2026-01-14 17:49:54.451Z] === Task Finished ===
[taskcluster 2026-01-14 17:49:55.383Z] Successful task run with exit code: 0 completed in 158.145 seconds
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