Link following is the process for dynamically redirecting a user after successful authentication. Disclaimer: I'm not sure what this is actually called, so I made up "Link following." If you know the actual name, let me know! If you are new to using OAuth to handle authentication, implementing link following won't be as intuitive as it would be if you were hand rolling your own. The trouble comes with remembering the link that the user clicked. If you were to write your own auth, this would a...