RESOLVED FIXED311709
Fix flaky test http/tests/security/contentSecurityPolicy/script-src-strict-dynamic-and-script-src-elem.html 
https://bugs.webkit.org/show_bug.cgi?id=311709
Summary Fix flaky test http/tests/security/contentSecurityPolicy/script-src-strict-dy...
roberto_rodriguez2
Reported 2026-04-07 23:50:13 PDT
Layout test http/tests/security/contentSecurityPolicy/script-src-strict-dynamic-and-script-src-elem.html creates a Worker whose script calls importScripts("post-message.js") followed by its own postMessage("importScripts allowed"). Since post-message.js also calls postMessage("importScripts allowed"), two identical messages are sent. The test only expected one, creating a race between notifyDone() and the second message's delivery. This became flaky after 292030@main moved alert output from the injected bundle (which had an isTestRunning() guard) to the UIProcess. Fix by waiting for both messages before calling notifyDone() and expecting both alerts.
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Radar WebKit Bug Importer
Comment 1 2026-04-07 23:50:19 PDT
<rdar://problem/174297450>
roberto_rodriguez2
Comment 2 2026-04-07 23:54:08 PDT
Pull request: https://github.com/WebKit/WebKit/pull/62255
EWS
Comment 3 2026-04-08 09:45:30 PDT
Committed 310783@main (1829d31df680): <https://commits.webkit.org/310783@main> Reviewed commits have been landed. Closing PR #62255 and removing active labels.
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