title: Access token warning when logging in using Facebook JavaScript SDK
body: <p>I'm using <code>debug.js</code> and getting the following message when executing <code>FB.login</code>: </p>
  
  <blockquote>
    <p>You are overriding current access token, that means some other app is
    expecting different access token and you will probably break things.
    Please consider passing access_token directly to API parameters
    instead of overriding the global settings.</p>
  </blockquote>
  
  <p>Any clues?</p>