title: What is the proper way to use OmniAuth + Devise when developing a Facebook tab?
body: <p>I'm developing a simple Facebook app that will live in a Page's tab. I'm trying to figure out what the best method is for authenticating users. It seems that normal page redirection isn't right, which is how OmniAuth + Devise do it out of the box. How can I make this work with the JavaScript SDK's auth dialog?</p>