[Webkit-unassigned] [Bug 243343] REGRESSION (iOS 16 Beta): Crash adding / removing ScriptMessageHandlers to WKUserContentController

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=243343

Tim Horton <thorton at apple.com> changed:

           What    |Removed                     |Added
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                 CC|                            |thorton at apple.com

--- Comment #7 from Tim Horton <thorton at apple.com> ---
The test case (WKWebViewBridgeCrashBackgroundThread) that is calling addScriptMessageHandler on a background queue is invalid; this is absolutely unsafe and can cause bugs exactly like the one you're experiencing. I think we should ignore that test case.

The original test case (WKWebViewBridgeCrashJSContext) does eventually reproduce, though, and doesn't have the same kind of obvious cause...

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