window.onerror / unhandledrejection Test

Tests the global window.onerror and unhandledrejection handlers. The indicator below shows if any uncaught errors or unhandled promise rejections have been captured.

Error Indicator

No errors captured

Error count: 0

Trigger Test Errors

Error Log

No errors logged yet.

Handler Status

window.onerror installed: checking...

unhandledrejection listener installed: checking...