title: Facebook Login response does not have email and public profile data
body: <p>I have simple login button:</p>
  
  <pre><code>&lt;div class="fb-login-button" data-width="234" data-max-rows="1" data-size="large" data-button-type="login_with" data-show-faces="false" data-auto-logout-link="false" data-use-continue-as="false" data-scope="public_profile,email" data-onlogin="system.onFacebookAuth()"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>And simple callback:</p>
  
  <pre><code>system.onFacebookAuth = function() {
      FB.getLoginStatus(function(response) {
          console.log(response);
      });
  }
  </code></pre>
  
  <p>I'm trying to sign in and:</p>
  
  <pre><code>{…}
  authResponse: {…}
  accessToken: "..."
  expiresIn: 3917
  reauthorize_required_in: 7775999
  signedRequest: "..."
  userID: "90204760053877350"
  &lt;prototype&gt;: Object { … }
  status: "connected"
  &lt;prototype&gt;: Object { … }
  </code></pre>
  
  <p>That's all. There is no email, not even public profile data such as user name. Can you explain me what's wrong please?</p>