user goes to cribspot while logged in to FB, and before logging in to Cribspot, goes back to FB and logs out, and then goes to Cribspot and tries to log in. The login button says "logging in", then goes back to its initial state without doing anything.
user goes to cribspot while logged in to FB, and before logging in to Cribspot, goes back to FB and logs out, and then goes to Cribspot and tries to log in. The login button says "logging in", then goes back to its initial state without doing anything.