title: Facebook graph authenticate client side and server side simultaneously?
body: <p>Here is what I am trying to do using facebook graph on my rails site:</p>
  
  <ol>
  <li>user client-side flow to get user permissions and authenticate user w/ facebook</li>
  <li>send the access token received on the client-side to my server for additional processing from the server side</li>
  </ol>
  
  <p>When I try to do this, I get an error from facebook saying I cannot authenticate the server. I am using the same token to do this that was given to me on the client side. Is there any way to authenticate the server without having the user log in using the server-side process?</p>