I'm using OAuth in my web app, and users can login with twitter and facebook.
I want to add "switch twitter and facebook account" button, which actually clears the session and then invokes the authorization ulr.
As clearing the session in my web app doesn't log out of twitter / facebook, the authorize_url will automatically authenticate the current twitter.com / facebook user. That means I can't do logout, unless I send the user to the social network.
Is it possible with the existing API to be able to logout a user without rewriting the authentication existing providers? What is the best way to implement this?