Implementing Google OAuth throws an error after logging in

I'm losing my mind over this, I'm sure it's a minor fix but I can't seem to get it working, I've setup the Google OAuth controller, and everything seems to be working at glance, the application builds, the url gets me to google, i can select my account, but once it tries to call the callback, it says the oauth state is missing or invalid

https://github.com/lumijiez/raven/blob/dev/auth/server/Raven/Raven.Auth/Controllers/GoogleOAuthController.cs

https://github.com/lumijiez/raven/blob/dev/auth/server/Raven/Raven.Auth/Startup.cs

here are the relevant files

GitHub

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