My app sits outside facebook canvas.
The facebook request dialog 2.0 only redirects to canvas url
eg. apps.ibibo.com/YOURAPP.
How can I make it open a custom ur
Unfortunately the accept button right now will always take you to the application page as you are seeing and there is no way right now to have it go elsewhere. You would have to redirect them from the canvas page. However, I don't see this as being against the Facebook policy though as Facebook requests can be originally sent from outside of Facebook using the iframe plugin. If you wanted to be able to put in an outside url for the accept button, I would log a feature request with Facebook.