Currently there is no way to check whether a user is logged into facebook (as far as I’ve read on here). For this people have suggested tracking the expiration of the token send from facebook, and omitting re-logging our user in until that token has expired. However, the app can be manually removed from the list of granted apps directly on facebook, and therefore making the expiration check useless, since your app doesn’t have access to the user’s fb account once this happens. We can’t call the fb.request permissions code since we don’t have access to facebook, and so our user is now stuck without facebook until the “theoretical” expiration of the old token comes. Is there a way around this?
