Auth0.js ParseHash detect state missing error check and redirect. This can happen when a user bookmarks the hosted login page or keeps the page open for 30minutes+

auth0js-parseHash-angular.ts

  public handleAuthentication(): void {
    this.auth0.parseHash({ 
    }, (err, authResult) => {
      if (authResult && authResult.accessToken && authResult.idToken) {
        console.log(authResult);
        this.localLogin(authResult);

        this.auth0.client.userInfo(authResult.accessToken, function (err, user) {
          localStorage.setItem("user_id", user.sub);
          console.log(user.sub);
          console.log(user);
        });

        this.router.navigate(['/home']);
      } else if (err) {
        console.log(err);
        if (err.error == "invalid_token" && err.errorDescription == "`state` does not match."){
          console.log("Invalid token, state does not match error... ");
          this.router.navigate(['/home']);
        }
        //alert(`Error: ${err.error}. Check the console for further details.`);
      }
    });
  }