Force google account chooser

The following parameter is supported in OAuth2 authorization URLs:

prompt

Currently it can have values none, select_account, and consent.

  • none: Will cause Google to not show any UI, and therefore fail if user needs to login, or select an account in case of multi-login, or consent if first approval. It can be run in an invisible i-frame to obtain a token from previously authorized users before you decide, for instance, to render an authorization button.

  • consent: Will force the approval page to be displayed even if the user has previously authorized your application. May be useful in a few corner cases, for instance if you lost the refresh_token for the user, as Google only issues refresh_tokens on explicit consent action.

  • select_account: Will cause the account selector to display, even if there’s a single logged-in user, just as you asked.

select_account can be combined with consent, as in:

prompt=select_account consent

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