This is an automatically generated bug from the commit-queue. imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html has been flaky on the commit-queue. imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html was authored by youennf@gmail.com. https://trac.webkit.org/browser/trunk/LayoutTests/imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html The commit-queue just saw imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/ready-states/autoplay-with-slow-text-tracks.html flake (text diff) while processing attachment 378311 [details] on bug 201584. Bot: webkit-cq-01 Port: <class 'webkitpy.common.config.ports.MacPort'> Platform: Mac OS X 10.13.6 The bots will update this with information from each new failure. If you believe this bug to be fixed or invalid, feel free to close. The bots will re-open if the flake re-occurs. If you would like to track this test fix with another bug, please close this bug as a duplicate. The bots will follow the duplicate chain when making future comments.
Created attachment 378319 [details] Archive of layout-test-results from webkit-cq-01
This test has been very flaky on macOS Mojave for a long time, see bug 176929. Failures on High Sierra aren't new either, but post-commit bots only see them on WebKit1 or GuardMalloc bots, not on Release WebKit2 like here. The diff appears to always be the same though. @@ -1,4 +1,3 @@ -CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length') CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length') CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length') CONSOLE MESSAGE: line 31: TypeError: null is not an object (evaluating 'track.track.cues.length')