title: Facebook login screen appears instead of friends list on AppRequest API call in Unity
body: <p>I am trying to implement 'Invite Friends' feature in my unity app. As per docs I call 'FB.AppRequest' with valid parameters but when this API is executed it opens a dialog with Facebook login page instead of FB user's friends list and asks user to login even though the user is already logged in with facebook. Only after successful login in that dialog it shows friends list. What am I doing wrong here?</p>
  
  <p>Here is my code :-</p>
  
  <pre><code>FB.AppRequest(
      "App name",
      null, null, null, null, null, null,
      delegate (IAppRequestResult result) {
          Debug.Log(result.RawResult);
      }
  );
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/IRmMM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IRmMM.png" alt="This screen appears on AppRequest API call"></a></p>