NEW305086
REGRESSION(303665@main): [macOS arm64 wk2] imported/w3c/web-platform-tests/media-source/mediasource-changetype-play-without-codecs-parameter.html is flaky failure with Harness Error 
https://bugs.webkit.org/show_bug.cgi?id=305086
Summary REGRESSION(303665@main): [macOS arm64 wk2] imported/w3c/web-platform-tests/me...
Marta Darbinyan
Reported 2026-01-07 17:08:52 PST
The following test is flaky failure with test timeout error in macOS arm64 wk2 after 303665@main. imported/w3c/web-platform-tests/media-source/mediasource-changetype-play-without-codecs-parameter.html +Harness Error (TIMEOUT), message = null PASS Check if browser supports enough test media types PASS Test audio-only changeType for audio/webm; codecs="vorbis" <-> audio/webm; codecs="vorbis" (using types without codecs parameters) PASS Test audio-only changeType for audio/webm; codecs="vorbis" <-> audio/mp4; codecs="mp4a.40.2" (using types without codecs parameters) PASS Test audio-only changeType for audio/webm; codecs="vorbis" <-> audio/mpeg (using types without codecs parameters) PASS Test audio-only changeType for audio/mp4; codecs="mp4a.40.2" <-> audio/webm; codecs="vorbis" (using types without codecs parameters) -PASS Test audio-only changeType for audio/mp4; codecs="mp4a.40.2" <-> audio/mp4; codecs="mp4a.40.2" (using types without codecs parameters) +TIMEOUT Test audio-only changeType for audio/mp4; codecs="mp4a.40.2" <-> audio/mp4; codecs="mp4a.40.2" (using types without codecs parameters) Test timed out PASS Test audio-only changeType for audio/mp4; codecs="mp4a.40.2" <-> audio/mpeg (using types without codecs parameters) PASS Test audio-only changeType for audio/mpeg <-> audio/webm; codecs="vorbis" (using types without codecs parameters) PASS Test audio-only changeType for audio/mpeg <-> audio/mp4; codecs="mp4a.40.2" (using types without codecs parameters) Test result: https://ews-build.webkit.org/#/builders/161/builds/8252 Test history: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fmedia-source%2Fmediasource-changetype-play-without-codecs-parameter.html&flavor=wk2&architecture=arm64
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Radar WebKit Bug Importer
Comment 1 2026-01-07 17:09:11 PST
<rdar://problem/167729269>
EWS
Comment 2 2026-01-07 17:33:25 PST
Test gardening commit 305243@main (fb6945e4e061): <https://commits.webkit.org/305243@main> Reviewed commits have been landed. Closing PR #56230 and removing active labels.
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