code: def do_POST(self, ):
          
          log.debug('POST')
          self._set_headers()
          # convert the parameters back to the original fragment
          # because we need to send the original uri to set_token
          # url fragments will not show up in self.path though.
          # thats why we make the hassle to send it as a post request.
          # Note: oauth does not allow for http connections
          # but twitch does, so we fake it
          ruri = constants.REDIRECT_URI.replace('http://', 'https://')
          self.server.set_token(ruri + self.path.replace('?', '#'))
docs: Handle POST requests
  
          When the user is redirected, this handler will respond with a website
          which will send a post request with the url fragment as parameters.
          This will get the parameters and store the original redirection
          url and fragments in :data:`LoginServer.tokenurl`.
  
          :returns: None
          :rtype: None
          :raises: None