MVC google login - OpenID auth request contains an unregistered domain

Question

When I try to login today via google in my web app, I get that error:

400 That’s an error.

OpenID auth request contains an unregistered do

Answer 1

This approach is obsolete as Google changed their auth to OAuth2

I didn't delete this answer because formerly approved api users are still valid to use.

== Original post below ==

If you are OWIN-based MVC5 user, just change Startup.Auth.cs file

        app.UseGoogleAuthentication();

to

app.UseGoogleAuthentication(
 clientId: "000-000.apps.googleusercontent.com",
 clientSecret: "00000000000");

according to the http://www.asp.net/mvc/tutorials/mvc-5/create-an-aspnet-mvc-5-app-with-facebook-and-google-oauth2-and-openid-sign-on page.