title: Facebook error 200 (Permission error) when posting a comment
body: <p>Sometimes when I want to post a comment to a post through the graph API, Facebook gives me this error:</p>
  
  <pre><code>Caught exception: (#200) Permissions error
  </code></pre>
  
  <p>Does anyone know why I get that error?
  It's only sometimes I get it.</p>
  
  <p>I've checked the access token and that is fine without any problems.</p>
  
  <p>Looking forward to hear from some Facebook experts :-)</p>