javascript - Finding where and why [object ErrorEvent] is being thrown

Question

I have 1 test failing and the log is no help whatsoever, other than telling me which test it is that fails...

LoginComponent should display username & password error message and not call login when passed nothing FAILED
    [object ErrorEvent] thrown
    [object ErrorEvent] thrown

Is there any way I can trace the source of the error?

I have attempted to test with ng test --source-map=false/true but nothing seems to have changed.

I ran again with --watch to check if I could open the console on my Chrome window to get more information, to which it stated that form.reset is not a function so I commented this line out but I am still getting the same error in my log of [object ErrorEvent] thrown from the same test, however now the Chrome Karma window does not display the form.reset error, but just: Uncaught Error: The requested path contains undefined segment at index 0

Answer 1

Two solutions :

• disable source mapping in your tests with the command ng test --source-mapping=false

• Open your browser's console, which will show you the real error.