Current pure python solution for facebook-oauth?

It looks like I was not the only one trying to avoid javascript altogether for a solution with OAuth 2.0 serverside. People could do everything but they couldn't logout:

Facebook Oauth Logout

Oauth Logout using facebook graph api

Facebook OAuth2 Logout does not remove fb_ cookie

The official documentation for OAuth 2.0 with Facebook says:

You can log a user out of their Facebook session by directing them to the following URL:

https://www.facebook.com/logout.php?next=YOUR_URL&access_token=ACCESS_TOKEN

YOUR_URL must be a URL in your site domain, as defined in the Developer App.

I wanted to do everything serverside and I found that the suggested way to link leaves the cookie so that the logout link doesn't work: https://www.facebook.com/logout.php?next=http://{{host}}&access_token={{current_user.access_token}} It does redirect but it doesn't log the user out of my website. It seemed like a Heisenbug since this was changing to me and there was not much documentation. I anyway seemed to be able to achieve the functionality with a handler that manipulates the cookie so that in effect the user is logged out:

class LogoutHandler(webapp2.RequestHandler):
    def get(self):
        current_user = main.get_user_from_cookie(self.request.cookies, facebookconf.FACEBOOK_APP_ID, facebookconf.FACEBOOK_APP_SECRET)
        if current_user:
          graph =