Bug 305509 – [GTK] Report of flaky tests on 14th Jan 2026

• Component: WebKitGTK
• Status: NEW

[Carlos Alberto Lopez Perez]

The following tests have been identified as flaky for platform GTK (but not for WPE) on 14th Jan 2026

compositing/repaint/needs-no-display-volatile-repaint.html [ ImageOnlyFailure Pass ]
fast/css/max-content-img-sizing-1.html [ ImageOnlyFailure Pass ]
fast/css/max-content-img-sizing-2.html [ ImageOnlyFailure Pass ]
fast/events/drag-selects-image.html [ Failure Pass ]
fast/events/mouse-cursor-change.html [ Failure Pass ]
fast/events/mouse-cursor-no-mousemove.html [ Failure Pass ]
fast/events/mouse-cursor-update-during-raf.html [ Failure Pass ]
fast/events/page-visibility-resize-event-order.html [ Pass Timeout ]
http/tests/inspector/network/har/har-page.html [ Failure Pass ]
http/tests/security/webaudio-render-remote-audio-allowed-crossorigin.html [ Pass Timeout ]
http/tests/security/webaudio-render-remote-audio-blocked-no-crossorigin-redirect.html [ Pass Timeout ]
imported/w3c/web-platform-tests/css/css-pseudo/marker-animate-002.html [ ImageOnlyFailure Pass ]
imported/w3c/web-platform-tests/css/css-view-transitions/start-view-transtion-skips-active.html [ Failure Pass ]
imported/w3c/web-platform-tests/event-timing/interactionid-orphan-pointerup.html [ Failure Pass ]
imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/track-cues-pause-on-exit.html [ Failure Pass ]



This is the flaky report

-------------------- compositing/repaint/needs-no-display-volatile-repaint.html --------------------

The bot gtk-release completed 961 runs on the interval [301594@main-305588@main]
Frecuency of results for test: compositing/repaint/needs-no-display-volatile-repaint.html
  698 times [72.6%]      ->  IMAGE
  76 times [7.9%]        ->  IMAGE PASS
  186 times [19.4%]      ->  NOERROR
  1 times [0.1%]         ->  CRASH

Of those 961 runs it didn't match the expectation 775 times [80.6%]
Details of the type and frequency of unmatched expectations:
  698 times [72.6%]      ->  IMAGE (Expected: PASS)
  76 times [7.9%]        ->  IMAGE PASS (Expected: PASS)
  1 times [0.1%]         ->  CRASH (Expected: PASS)

Flakiness factor: 40.2%
    - This test was flaky on 40.2% of the 961 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- fast/css/max-content-img-sizing-1.html --------------------

The bot gtk-release completed 970 runs on the interval [301594@main-305588@main]
Frecuency of results for test: fast/css/max-content-img-sizing-1.html
  329 times [33.9%]      ->  IMAGE
  382 times [39.4%]      ->  NOERROR
  259 times [26.7%]      ->  IMAGE PASS

Of those 970 runs it didn't match the expectation 588 times [60.6%]
Details of the type and frequency of unmatched expectations:
  329 times [33.9%]      ->  IMAGE (Expected: PASS)
  259 times [26.7%]      ->  IMAGE PASS (Expected: PASS)

Flakiness factor: 69.6%
    - This test was flaky on 69.6% of the 970 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- fast/css/max-content-img-sizing-2.html --------------------

The bot gtk-release completed 980 runs on the interval [301594@main-305588@main]
Frecuency of results for test: fast/css/max-content-img-sizing-2.html
  507 times [51.7%]      ->  IMAGE
  282 times [28.8%]      ->  NOERROR
  191 times [19.5%]      ->  IMAGE PASS

Of those 980 runs it didn't match the expectation 698 times [71.2%]
Details of the type and frequency of unmatched expectations:
  507 times [51.7%]      ->  IMAGE (Expected: PASS)
  191 times [19.5%]      ->  IMAGE PASS (Expected: PASS)

Flakiness factor: 62.0%
    - This test was flaky on 62.0% of the 980 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- fast/events/drag-selects-image.html --------------------

The bot gtk-release completed 980 runs on the interval [301594@main-305588@main]
Frecuency of results for test: fast/events/drag-selects-image.html
  512 times [52.2%]      ->  TEXT PASS
  93 times [9.5%]        ->  TEXT
  375 times [38.3%]      ->  NOERROR

Of those 980 runs it didn't match the expectation 605 times [61.7%]
Details of the type and frequency of unmatched expectations:
  512 times [52.2%]      ->  TEXT PASS (Expected: PASS)
  93 times [9.5%]        ->  TEXT (Expected: PASS)

Flakiness factor: 75.8%
    - This test was flaky on 75.8% of the 980 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- fast/events/mouse-cursor-change.html --------------------

The bot gtk-release completed 1011 runs on the interval [301594@main-305588@main]
Frecuency of results for test: fast/events/mouse-cursor-change.html
  879 times [86.9%]      ->  TEXT PASS
  131 times [13.0%]      ->  TEXT
  1 times [0.1%]         ->  TEXT TIMEOUT

Of those 1011 runs it didn't match the expectation 1011 times [100%]
Details of the type and frequency of unmatched expectations:
  879 times [86.9%]      ->  TEXT PASS (Expected: PASS)
  131 times [13.0%]      ->  TEXT (Expected: PASS)
  1 times [0.1%]         ->  TEXT TIMEOUT (Expected: PASS)

Flakiness factor: 91.8%
    - This test was flaky on 91.8% of the 1011 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- fast/events/mouse-cursor-no-mousemove.html --------------------

The bot gtk-release completed 1011 runs on the interval [301594@main-305588@main]
Frecuency of results for test: fast/events/mouse-cursor-no-mousemove.html
  887 times [87.7%]      ->  TEXT PASS
  122 times [12.1%]      ->  TEXT
  1 times [0.1%]         ->  TIMEOUT PASS
  1 times [0.1%]         ->  TIMEOUT

Of those 1011 runs it didn't match the expectation 1011 times [100%]
Details of the type and frequency of unmatched expectations:
  887 times [87.7%]      ->  TEXT PASS (Expected: PASS)
  122 times [12.1%]      ->  TEXT (Expected: PASS)
  1 times [0.1%]         ->  TIMEOUT PASS (Expected: PASS)
  1 times [0.1%]         ->  TIMEOUT (Expected: PASS)

Flakiness factor: 92.0%
    - This test was flaky on 92.0% of the 1011 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- fast/events/mouse-cursor-update-during-raf.html --------------------

The bot gtk-release completed 982 runs on the interval [301594@main-305588@main]
Frecuency of results for test: fast/events/mouse-cursor-update-during-raf.html
  310 times [31.6%]      ->  NOERROR
  94 times [9.6%]        ->  TEXT
  578 times [58.9%]      ->  TEXT PASS

Of those 982 runs it didn't match the expectation 672 times [68.4%]
Details of the type and frequency of unmatched expectations:
  94 times [9.6%]        ->  TEXT (Expected: PASS)
  578 times [58.9%]      ->  TEXT PASS (Expected: PASS)

Flakiness factor: 61.1%
    - This test was flaky on 61.1% of the 982 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- fast/events/page-visibility-resize-event-order.html --------------------

The bot gtk-release completed 1002 runs on the interval [301594@main-305588@main]
Frecuency of results for test: fast/events/page-visibility-resize-event-order.html
  268 times [26.7%]      ->  NOERROR
  216 times [21.6%]      ->  TIMEOUT PASS
  518 times [51.7%]      ->  TIMEOUT

Of those 1002 runs it didn't match the expectation 734 times [73.3%]
Details of the type and frequency of unmatched expectations:
  216 times [21.6%]      ->  TIMEOUT PASS (Expected: PASS)
  518 times [51.7%]      ->  TIMEOUT (Expected: PASS)

Flakiness factor: 46.0%
    - This test was flaky on 46.0% of the 1002 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- http/tests/inspector/network/har/har-page.html --------------------

The bot gtk-release completed 1006 runs on the interval [301594@main-305588@main]
Frecuency of results for test: http/tests/inspector/network/har/har-page.html
  73 times [7.3%]        ->  NOERROR
  821 times [81.6%]      ->  TEXT
  105 times [10.4%]      ->  TEXT PASS
  6 times [0.6%]         ->  TIMEOUT
  1 times [0.1%]         ->  CRASH

Of those 1006 runs it didn't match the expectation 933 times [92.7%]
Details of the type and frequency of unmatched expectations:
  821 times [81.6%]      ->  TEXT (Expected: PASS)
  105 times [10.4%]      ->  TEXT PASS (Expected: PASS)
  6 times [0.6%]         ->  TIMEOUT (Expected: PASS)
  1 times [0.1%]         ->  CRASH (Expected: PASS)

Flakiness factor: 31.8%
    - This test was flaky on 31.8% of the 1006 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- http/tests/security/webaudio-render-remote-audio-allowed-crossorigin.html --------------------

The bot gtk-release completed 924 runs on the interval [301594@main-305588@main]
Frecuency of results for test: http/tests/security/webaudio-render-remote-audio-allowed-crossorigin.html
  224 times [24.2%]      ->  TIMEOUT
  205 times [22.2%]      ->  TIMEOUT PASS
  494 times [53.5%]      ->  NOERROR
  1 times [0.1%]         ->  TEXT TIMEOUT

Of those 924 runs it didn't match the expectation 430 times [46.5%]
Details of the type and frequency of unmatched expectations:
  224 times [24.2%]      ->  TIMEOUT (Expected: PASS)
  205 times [22.2%]      ->  TIMEOUT PASS (Expected: PASS)
  1 times [0.1%]         ->  TEXT TIMEOUT (Expected: PASS)

Flakiness factor: 63.4%
    - This test was flaky on 63.4% of the 924 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- http/tests/security/webaudio-render-remote-audio-blocked-no-crossorigin-redirect.html --------------------

The bot gtk-release completed 931 runs on the interval [301594@main-305588@main]
Frecuency of results for test: http/tests/security/webaudio-render-remote-audio-blocked-no-crossorigin-redirect.html
  255 times [27.4%]      ->  TIMEOUT
  494 times [53.1%]      ->  NOERROR
  182 times [19.5%]      ->  TIMEOUT PASS

Of those 931 runs it didn't match the expectation 437 times [46.9%]
Details of the type and frequency of unmatched expectations:
  255 times [27.4%]      ->  TIMEOUT (Expected: PASS)
  182 times [19.5%]      ->  TIMEOUT PASS (Expected: PASS)

Flakiness factor: 59.7%
    - This test was flaky on 59.7% of the 931 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- imported/w3c/web-platform-tests/css/css-pseudo/marker-animate-002.html --------------------

The bot gtk-release completed 888 runs on the interval [301594@main-305588@main]
Frecuency of results for test: imported/w3c/web-platform-tests/css/css-pseudo/marker-animate-002.html
  653 times [73.5%]      ->  NOERROR
  221 times [24.9%]      ->  IMAGE
  14 times [1.6%]        ->  IMAGE PASS

Of those 888 runs it didn't match the expectation 235 times [26.5%]
Details of the type and frequency of unmatched expectations:
  221 times [24.9%]      ->  IMAGE (Expected: PASS)
  14 times [1.6%]        ->  IMAGE PASS (Expected: PASS)

Flakiness factor: 8.6%
    - This test was flaky on 8.6% of the 888 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- imported/w3c/web-platform-tests/css/css-view-transitions/start-view-transtion-skips-active.html --------------------

The bot gtk-release completed 977 runs on the interval [301594@main-305588@main]
Frecuency of results for test: imported/w3c/web-platform-tests/css/css-view-transitions/start-view-transtion-skips-active.html
  209 times [21.4%]      ->  NOERROR
  293 times [30.0%]      ->  TEXT PASS
  475 times [48.6%]      ->  TEXT

Of those 977 runs it didn't match the expectation 768 times [78.6%]
Details of the type and frequency of unmatched expectations:
  293 times [30.0%]      ->  TEXT PASS (Expected: PASS)
  475 times [48.6%]      ->  TEXT (Expected: PASS)

Flakiness factor: 60.0%
    - This test was flaky on 60.0% of the 977 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- imported/w3c/web-platform-tests/event-timing/interactionid-orphan-pointerup.html --------------------

The bot gtk-release completed 961 runs on the interval [301594@main-305588@main]
Frecuency of results for test: imported/w3c/web-platform-tests/event-timing/interactionid-orphan-pointerup.html
  735 times [76.5%]      ->  TEXT PASS
  153 times [15.9%]      ->  NOERROR
  73 times [7.6%]        ->  TEXT

Of those 961 runs it didn't match the expectation 808 times [84.1%]
Details of the type and frequency of unmatched expectations:
  735 times [76.5%]      ->  TEXT PASS (Expected: PASS)
  73 times [7.6%]        ->  TEXT (Expected: PASS)

Flakiness factor: 87.2%
    - This test was flaky on 87.2% of the 961 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

-------------------- imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/track-cues-pause-on-exit.html --------------------

The bot gtk-release completed 909 runs on the interval [301594@main-305588@main]
Frecuency of results for test: imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/track-cues-pause-on-exit.html
  261 times [28.7%]      ->  TEXT PASS
  405 times [44.6%]      ->  NOERROR
  237 times [26.1%]      ->  TEXT
  6 times [0.7%]         ->  TEXT TIMEOUT

Of those 909 runs it didn't match the expectation 504 times [55.4%]
Details of the type and frequency of unmatched expectations:
  261 times [28.7%]      ->  TEXT PASS (Expected: PASS)
  237 times [26.1%]      ->  TEXT (Expected: PASS)
  6 times [0.7%]         ->  TEXT TIMEOUT (Expected: PASS)

Flakiness factor: 71.0%
    - This test was flaky on 71.0% of the 909 runs analyzed, either giving different
      results within a single run, or a different result than in the previous run.

-------------------------------------------------------------------------------------

[Carlos Alberto Lopez Perez]

Expectations updated at 305610@main