Migrations -> New Data Permissions -> Error Code: 100 about pyfacebook

[vaz]

Yep. next needs to be an absolute URL.. If you're using require_login() with no params, it's passing next with no value. pyfacebook is redirecting to:

www.facebook.com/login.php?canvas=1&api_key=XXXXX&v=1.0&next=

but now that's re-redirecting to:

www.facebook.com/connect/uiserver.php?app_id=XXXX&next=&display=page&locale=en_US&return_session=0&fbconnect=0&canvas=1&legacy_return=1&method=permissions.request

Next is empty so it's invalid.
You can do require_login(next="http://apps.facebook.com/" + my_app_name)

Or you can do what I did and hack the require_login method to prepend your app's url. See http://github.com/vaz/pyfacebook/commit/6f707cf1cc65cdb9d61ec1004dd091eb1f637548

I doubt it's the "right" solution but for a canvas app it works. Note you need to have FACEBOOK_APP_NAME set so that fb.get_app_url() works.