Google Plus, , , , , Google Plus Login.
"WWW [] googleapis [] //plus.login"
, , access_token , firebase , authwihtoauthtoken, google access_token, chrome.identity.getAuthToken()!
https://www.firebase.com/docs/web/api/firebase/authwithoauthtoken.html
, , , , , .
firebase.
, , .
, Google, . , -, firebase google oAuth .
. google, .
.
.
https://developers.google.com/identity/protocols/OAuth2UserAgent#validatetoken
, . , , , .
, , Google. , , .
Google , python, :
"GitHub [] /GooglePlus/Gplus-verifytoken-"
, , ; , firebase , CLIENT_ID APP_SECRET firebase Google.
- , client_secret. Chrome access_token, access_token firebase.