I would like to display some information about the user before using SSO. Something like:
“Login with facebook as John Smith”
Is this possible before actually logging in? Like grabbing info from the facebook app?
It’d be nice to express to the user that pressing the button means logging in with the user defined in the fbook app. I just don’t want my users thinking they’ll get to input an email address and accidentally link their account to their friend’s facebook.
The reason for why this is not possible is that if it would be possible you could easily track who exactly is using your app, without having the permission to collect that user information.