fix(core): avoid injecting internal error handler from a destroyed in…

…jector This commit prevents lazy injection of the internal `ErrorHandler` from a destroyed injector, which would otherwise result in a secondary "destroyed injector" error. The `handleUncaughtError` function is used in a wrapped event listener that invokes the `ErrorHandler` if the listener throws. A simple case in a micro-frontend application: ```ts onNavigationToAnotherApp() { this.appRef.destroy(); do_some_stuff_ie_loggin_that_may_throw(); } ``` If the function throws an error, Angular attempts to inject the `ErrorHandler` from a destroyed injector.
angular · arturovt · Jun 25, 2025 · Aug 27, 2025 · 6d0d168e44cbd2990cb603bec39645db1bc4df08
commit 6d0d168e44cbd2990cb603bec39645db1bc4df08
diff --git a/packages/core/src/render3/instructions/shared.ts b/packages/core/src/render3/instructions/shared.ts
@@ -705,7 +705,12 @@ export function handleUncaughtError(lView: LView, error: any): void {
   if (!injector) {
     return;
   }
-  const errorHandler = injector.get(INTERNAL_APPLICATION_ERROR_HANDLER, null);
+  let errorHandler: ((e: any) => void) | null;
+  try {
+    errorHandler = injector.get(INTERNAL_APPLICATION_ERROR_HANDLER, null);
+  } catch {
+    errorHandler = null;
+  }
   errorHandler?.(error);
 }