242043 2022-06-27 18:14:19 -0700 [ macOS Release ] TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollPlayingMutedVideoOutOfView is a flaky timeout 2022-09-29 00:25:14 -0700 1 1 1 Unclassified WebKit Media WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 175909 InRadar P2 Normal --- 1 rackler webkit-unassigned eric.carlson heycam jean-yves.avenard jer.noble webkit-bot-watchers-bugzilla webkit-bug-importer wenson_hsieh oldest_to_newest 1878642 0 rackler 2022-06-27 18:14:19 -0700 Description: TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollPlayingMutedVideoOutOfView The first failure that I saw on the dashboard was at 248582@main. The test appears to be resolved at 248616@main, and then it becomes a flaky timeout again at 248952@main. I attempted to reproduce this locally but have been unsuccessful thus far. History: https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollPlayingMutedVideoOutOfView&limit=50000&platform=mac&style=release run-api-tests stdio: Timeout TestWebKitAPI.VideoControlsManager.VideoControlsManagerMultipleVideosScrollPlayingMutedVideoOutOfView 2022-06-27 14:25:14.591 com.apple.WebKit.WebContent.Development[14533:173559099] ApplePersistence=NO 1878643 1 webkit-bug-importer 2022-06-27 18:14:51 -0700 <rdar://problem/96026645> 1878794 2 rackler 2022-06-28 10:39:33 -0700 I have disabled this test while this issue is investigated. 1878893 3 ews-feeder 2022-06-28 15:48:31 -0700 Test gardening commit 251929@main (d64759548f1b): <https://commits.webkit.org/251929@main> Reviewed commits have been landed. Closing PR #1857 and removing active labels. 1901963 4 heycam 2022-09-29 00:21:44 -0700 The problem is that the test runs some script, muteFirstVideoAndScrollToSecondVideo(), and then we immediately add a handler for a message that the page sends in response. Depending on timing, the Web process can end up sending the message before the UI process has added the handler. 1901964 5 heycam 2022-09-29 00:25:14 -0700 Duping to bug 175909, which has the same underlying issue. *** This bug has been marked as a duplicate of bug 175909 ***