I have been checking the params for params[:fb_sig] to detect if the client is in the Facebook canvas, but those don''t work at the beginning of a controller when you''re calling before_filters. I have a require_login in the before_filter, but I want to skip it if the user is from Facebook. So are there any other ways to check that the client is coming from the canvas?
Apparently Analagous Threads
Wisdom of the Ancients
