How do I get google play games to work?

Hi.

So I'm trying to connect my game to google play games but there's a problem I can't fix.

I created the game in game services and linked the android app to it. I also linked a web app to the game with "Authorized JavaScript origins" and "Authorized redirect URIs" set to: "http://localhost".

Then I did two tests, first I entered "client id" and "SHA-1 certificate fingerprint" of android app to the game (google play plugin properties), then I entered "client id" and "secret id" of web app, tested the game and in both cases when I'm trying to sign in I get this error:

Then I added this line to config.xml:

<preference name="OverrideUserAgent" value="Mozilla/5.0 Google" />

It fixed the problem but now there's an other one, when I try to sign in, it opens a web page to google login page, while the whole point is to use the play games app.

and this is my events for this test, i'd really appreciate any help.

no one?