Anyone have any good ideas on how to use ensure_authenticated_to_facebook before_filters in a canvas iframe application that also has external interface? I had been checking controller.format == "fbml" in an fbml canvas app but looking at perhaps migrating to full iframe and having some challenges figuring out authenitcation. Would appreciate if anyone knows of any resources haven't found to much via google that I could apply via ruby on rails.<br>
<br> Thanks --ken s.<br>