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feature(react-native): report react render errors that no error boundary catches - #409
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# Conflicts: # packages/react-native/android/src/main/java/backtrace/library/BacktraceAndroidBackgroundUnhandledExceptionHandler.java
KishanPRao
changed the base branch from
main
to
bugfix/android-fatal-js-double-report
October 7, 2026 11:18
KishanPRao
marked this pull request as ready for review
October 7, 2026 14:05
melekr
approved these changes
Oct 7, 2026
# Conflicts: # .github/scripts/android-js-fatal.sh # .github/scripts/ci-crash-driver.js # .github/workflows/android.yml # packages/react-native/src/handlers/UnhandledExceptionHandler.ts
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Summary
Render errors that no error boundary catches now produce one crash report with the JS stack and the component stack, instead of a native crash report without JS frames.
Changes
UnhandledExceptionHandler.ts: report render errors that no error boundary catches, attach the component stack, restore React Native's handler on dispose.exceptionsManagerHelper.ts: new, find React Native's exception handler on every supported version.renderErrorHandlerTests.spec.ts: new, cover uncaught and caught render errors, debug builds, dispose and re-init.renderErrorRendererTests.spec.ts: new, throw during a real render on the old and New Architecture, and on the React 18 path.exceptionsManagerHelperTests.spec.ts: new, cover both module shapes and a missing module.ci-crash-driver.js: add a deep link that throws during render outside the app's error boundary, log each stored report's type and threads.android-js-fatal.sh: add a render error mode, check the report type and the component stack.android.yml: run the render error check on both architectures.Note
Depends on #408, merge after.
ref: BT-7713