[Webkit-unassigned] [Bug 207788] New: Regression: (r256619?) [ Mac Release ] imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events.html is failing.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207788

            Bug ID: 207788
           Summary: Regression: (r256619?) [ Mac Release ]
                    imported/w3c/web-platform-tests/web-animations/timing-
                    model/timelines/update-and-send-events.html is
                    failing.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Macintosh
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Platform
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Lawrence.j at apple.com

imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events.html

Description:
This test is failing on Mac Release and it appears to have started on r256619.

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fweb-animations%2Ftiming-model%2Ftimelines%2Fupdate-and-send-events.html&platform=mac

Diff:
--- /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events-expected.txt
+++ /Volumes/Data/slave/catalina-release-tests-wk1/build/layout-test-results/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events-actual.txt
@@ -1,3 +1,4 @@
+CONSOLE MESSAGE: line 251: Unhandled Promise Rejection: AbortError: The operation was aborted.

 PASS Fires cancel event before requestAnimationFrame 
 PASS Fires finish event before requestAnimationFrame

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