title: Link facebook application request to facebook application page. Considered invalid because it is a Facebook url
body: <p>I can successfully send app requests by using <code>method: 'apprequests'</code> and the receiver gets the notification properly. I know the page to be shown when the user clicks on the request is the one you put as Canvas URL/Secure Canvas URL.</p>
  
  <p>The thing is I had already set up an App Page for my app, so it makes a lot of sense to lead the user to this page when he/she accepts the request. But I cannot put my app url as Canvas URL because Facebook will not allow it (<em>error: is invalid because it is a Facebook url</em>).</p>
  
  <p>In similar questions, many suggest a redirection but I wonder if there is a more direct/proper way.</p>