Javascript is being executed while using UI and WK WebView. However, since iOS 17.0.3, the WTFCrashWithInfoImpl issue has been posted in CrashReport, and it has been determined that Javascript is not supported in WebView for certain users. I wonder if there has been a fix in JavascriptCore.
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Developer Tools Engineer
Add a CommentPlease file a Feedback Assistant issue and attach either the crash log or (best option) a small Xcode project that reproduces the crash.
You may launch Feedback Assistant on non-beta builds by loading the <applefeedback://> URL in Safari (on iOS or macOS) and accepting the app launch.
Please post the Feedback ID here when filed.