[Webkit-unassigned] [Bug 222493] New: [BigSur Wk1] platform/mac-bigsur/media/media-source/media-source-webm-vp8-malformed-header.html is consistently failing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222493

            Bug ID: 222493
           Summary: [BigSur Wk1]
                    platform/mac-bigsur/media/media-source/media-source-we
                    bm-vp8-malformed-header.html is consistently failing
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: amir_mark at apple.com

platform/mac-bigsur/media/media-source/media-source-webm-vp8-malformed-header.html

Is consistently failing on Big Sur Wk1 since being introduced.

History:

https://results.webkit.org/?suite=layout-tests&test=platform%2Fmac-bigsur%2Fmedia%2Fmedia-source%2Fmedia-source-webm-vorbis-partial.html

Text Diff:

--- /Volumes/Data/worker/bigsur-release-tests-wk1/build/layout-test-results/platform/mac-bigsur/media/media-source/media-source-webm-vp8-malformed-header-expected.txt
+++ /Volumes/Data/worker/bigsur-release-tests-wk1/build/layout-test-results/platform/mac-bigsur/media/media-source/media-source-webm-vp8-malformed-header-actual.txt
@@ -3,11 +3,9 @@
 EVENT(sourceopen)
 RUN(source.duration = loader.duration())
 RUN(sourceBuffer = source.addSourceBuffer(loader.type()))
+NotSupportedError: The operation is not supported.
 RUN(sourceBuffer.appendBuffer(loader.initSegment()))
-EVENT(update)
-Append a media segment.
-RUN(sourceBuffer.appendBuffer(loader.mediaSegment(0)))
-EVENT(update)
-EXPECTED (sourceBuffer.buffered.end(0) > '1') OK
+TypeError: undefined is not an object (evaluating 'sourceBuffer.appendBuffer')
+Caught exception: "TypeError: undefined is not an object (evaluating 'element.addEventListener')" FAIL
 END OF TEST

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