Bug 268095 – REGRESSION (268393@main?): [Monterey wk2 ] imported/w3c/web-platform-tests/mimesniff/media/media-sniff.window.html is a consistent failure

• Status: RESOLVED
• Resolution: FIXED
• Component: New Bugs

[Marta Darbinyan]

Description:
imported/w3c/web-platform-tests/mimesniff/media/media-sniff.window.html

Is a constant failure on macOS Monterey ToT. Suspected 268393@main is the regression point. 

This issue can be reproduced by using the command: 
run-webkit-tests --root  --exit-after-n-failures 1 --debug <test>

History:
https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fmimesniff%2Fmedia%2Fmedia-sniff.window.html&version_name=Monterey&flavor=wk2

Error Logs:
@@ -35,10 +35,10 @@
 PASS wav.wav loads when served with Content-Type text/html
 PASS wav.wav loads when served with Content-Type audio/ogg; codec=vorbis
 PASS wav.wav loads when served with Content-Type application/pdf
-FAIL webm.webm loads when served with Content-Type  assert_unreached: No error expected frorm the HTMLMediaElement Reached unreachable code
-FAIL webm.webm loads when served with Content-Type bogus/mime assert_unreached: No error expected frorm the HTMLMediaElement Reached unreachable code
-FAIL webm.webm loads when served with Content-Type application/octet-stream assert_unreached: No error expected frorm the HTMLMediaElement Reached unreachable code
-FAIL webm.webm loads when served with Content-Type text/html assert_unreached: No error expected frorm the HTMLMediaElement Reached unreachable code
-FAIL webm.webm loads when served with Content-Type audio/ogg; codec=vorbis assert_unreached: No error expected frorm the HTMLMediaElement Reached unreachable code
-FAIL webm.webm loads when served with Content-Type application/pdf assert_unreached: No error expected frorm the HTMLMediaElement Reached unreachable code
+PASS webm.webm loads when served with Content-Type
+PASS webm.webm loads when served with Content-Type bogus/mime
+PASS webm.webm loads when served with Content-Type application/octet-stream
+PASS webm.webm loads when served with Content-Type text/html
+PASS webm.webm loads when served with Content-Type audio/ogg; codec=vorbis
+PASS webm.webm loads when served with Content-Type application/pdf  

Link:
https://build.webkit.org/results/Apple-Monterey-Release-AppleSilicon-WK2-Tests/273507@main%20(13301)/imported/w3c/web-platform-tests/mimesniff/media/media-sniff.window-pretty-diff.html

[Radar WebKit Bug Importer]

<rdar://problem/121611809>

[EWS]

Test gardening commit 273524@main (05021da705bd): <https://commits.webkit.org/273524@main>

Reviewed commits have been landed. Closing PR #23249 and removing active labels.

[Jean-Yves Avenard [:jya]]

Pull request: https://github.com/WebKit/WebKit/pull/23292

[EWS]

Committed 273558@main (898046240436): <https://commits.webkit.org/273558@main>

Reviewed commits have been landed. Closing PR #23292 and removing active labels.