Bug 265483

Description:
The following two tests have been failing on macOS x86_64 wk2 since they were introduced in 271087@main:

http/wpt/webcodecs/h264-encoder-default-config.https.any.html
http/wpt/webcodecs/h264-encoder-default-config.https.any.worker.html

History:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=http%2Fwpt%2Fwebcodecs%2Fh264-encoder-default-config.https.any.worker.html&test=http%2Fwpt%2Fwebcodecs%2Fh264-encoder-default-config.https.any.html&version_name=Monterey&version_name=Sonoma&version_name=Ventura&architecture=x86_64

Diff Log:
@@ -1,5 +1,5 @@
 PASS Setup activating worker
-PASS Service worker load uses preload through calling fetch on the fetch event request
+FAIL Service worker load uses preload through calling fetch on the fetch event request assert_equals: expected "use-preload" but got "nothing"
 

Link:
https://build.webkit.org/results/Apple-Sonoma-Release-WK2-Tests/271228@main%20(803)/http/wpt/service-workers/fetch-service-worker-preload-cache.https-pretty-diff.html