My website is using facebook auth to register and login with 'user_link' permission. The url given by fb is something like "https://www.facebook.com/app_scoped_user_id/YXNpZADpBWEhxcDBRa29....."
The problem is that the url redirects to the user's profile, when the user is my friend in facebook. In other situations the url shows an error message.
I create a competition and want user verify that users whom take part in the competition. How I can redirect users to real profile in the social network?