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structuredClone reads user-overridden RegExp properties #58224
Description
Description
The React Native structuredClone polyfill reads value.source and value.flags, so own overrides replace a RegExp's internal pattern/flags while cloning. Capturing only the aggregate flags getter is also insufficient because it reads user-visible per-flag properties such as global.
Expected behavior
RegExp cloning should read the built-in internal source and canonical d g i m s u v y flags without invoking or trusting own overrides, matching native structuredClone.
React Native Version
0.87.1 and current main
Affected Platforms
JavaScript runtime - All
Activity
react-native-bot commentedon Aug 30, 2026
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react-native-bot commentedon Sep 24, 2026
This issue is waiting for author's feedback since 24 days. Please provide the requested feedback or this will be closed in 7 days.
react-native-bot commentedon Oct 1, 2026
This issue was closed because the author hasn't provided the requested feedback after 7 days.