Closed
Description
Which @angular/* package(s) are the source of the bug?
Don't known / other
Is this a regression?
No
Description
When using provideBrowserGlobalErrorListeners() as described in the Angular v20 release (zoneless part), the browser warning, "ResizeObserver loop completed with undelivered notifications." is forwarded to Angular’s ErrorHandler. However, the actual error value passed into handleError() is null. This makes it impossible to handle or identify the source of the issue within a custom global error handler.
I managed to find out what it was by adding an event listener:
And this is the result log:
Please provide a link to a minimal reproduction of the bug
No response
Please provide the exception or error you saw
Please provide the environment you discovered this bug in (run ng version)
Angular CLI: 20.0.1
Node: 22.16.0
Package Manager: npm 10.9.2
OS: win32 x64
Angular: 20.0.1
... animations, cdk, cli, common, compiler, compiler-cli, core
... forms, language-service, platform-browser
... platform-browser-dynamic, router, service-worker
Package Version
--------------------------------------------------------------
@angular-devkit/architect 0.1902.13
@angular-devkit/build-angular 20.0.1
@angular-devkit/core 19.2.13
@angular-devkit/schematics 19.2.13
@angular/fire 20.0.0
@angular/google-maps 20.0.2
@angular/material 20.0.2
@angular/material-date-fns-adapter 20.0.2
@angular/youtube-player 20.0.2
@schematics/angular 20.0.1
rxjs 7.8.2
typescript 5.8.3
Anything else?
No response
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