Bug 263568

Description:
media/media-source/media-source-webm-configuration-framerate.html is failing since it was introduced in 263964@main. It has been failing on macOS wk1 arm64 since then. 

This issue can be reproduced by running:
run-webkit-tests --release --iterations=10 media/media-source/media-source-webm-configuration-framerate.html


History:
https://results.webkit.org/?suite=layout-tests&test=media%2Fmedia-source%2Fmedia-source-webm-configuration-framerate.html&flavor=wk1&architecture=arm64

Diff/Image Diff/Crash Log:
11
22TEST("content/test-vp9-23.976fps-manifest.json")
3 EXPECTED (video.videoTracks[0].configuration.framerate == '23.976') OK
4 TEST("content/test-vp9-24fps-manifest.json")
5 EXPECTED (video.videoTracks[0].configuration.framerate == '24') OK
6 TEST("content/test-vp9-29.97fps-manifest.json")
7 EXPECTED (video.videoTracks[0].configuration.framerate == '29.97') OK
8 TEST("content/test-vp9-30fps-manifest.json")
9 EXPECTED (video.videoTracks[0].configuration.framerate == '30') OK
 3Caught exception: "NotSupportedError: The operation is not supported." FAIL
104END OF TEST


Link:
https://build.webkit.org/results/Apple-Monterey-Release-AppleSilicon-WK1-Tests/268570@main%20(12588)/media/media-source/media-source-webm-configuration-framerate-pretty-diff.html