The facebook OAuth dialog redirects back to the provided redirect_uri without prompt if the user has previously approved access to the application and provided all permissions ...
I want to overwrite that behavior and force the dialog to ask the user again for permissions ...
wonder if this can be done, since the documentation provide no help on whether this is doable or not.
I know this is an old post, but I just came across it and since I found the correct answer elsewhere, I thought I'd post it here.
You can send the auth_type=reauthorize.
AFAIK, auth_type has the following options:
* reauthorize always has for permissions
* rerequest for declined/revoked permissions
* reauthenticate always as user to confirm password.