mitsuhiko/flask-oauth — pull request #42 by rychlis (2012-12-11 19:50:52+00:00)
Title: Authorization URL customization

This enables library users to pass extra parameters (as extra_params) that will be added to redirected URL to OAuthRemoteApp's authorize method.

This is usefull for facebook if you want to show non-default page layout - like the display parameter (see https://developers.facebook.com/docs/reference/dialogs/)

I've seen the https://github.com/mitsuhiko/flask-oauth/pull/15 request but I don't think putting extra params into callback_url is a good solution, this is much cleaner IMHO.