Invalid state on reload Auth0 callback url, using auth0-spa-js and Angular 8

[mads1]

Hi Dan

I made a few changes, compared to the quick start:

1. Removed the handleAuthCallback() from the auth service constructor. The handleAuthCallback() is placed in the ngOnInit() on the Auth0 callback url, in our case /auth. see below

  constructor(private auth0Service: Auth0SpaService) { }

  ngOnInit() {
    this.auth0Service.handleAuthCallback();
  }

2. In the handleAuthCallback() we use this.router.navigateByUrl(targetRoute), where navigateByUrl is different from the quick guide

In order to reproduce. The problem seems to occur when you refresh the browser, when you are on the Auth0 callback url from a successful login. It is easier to reproduce If you add a delay on the ngOnInit above, then you have time to press the refresh button before redirected.

At this moment, the error is only reported from Chrome 79.0.3945

Please let me know if any other info is needed.

Just added a screenshot of the stacktrace when the error occur on refresh browser

Thanks in advance