title: Facebook custom share button not showing description
body: <p>I am using following JS code for sharing on facebook.</p>
  
  <pre><code>function openFbPopUp() {
      var fburl = 'http://54.251.121.6/cnc/cupcakes-n-chai-side-table';
      var fbimgurl = 'http://imageURL';
      var fbtitle = 'Your title';
      var fbsummary = "This is the description blah blah blah";
      var sharerURL = "http://www.facebook.com/sharer/sharer.php?s=100&amp;p[url]=" + encodeURI(fburl) + "&amp;p[images][0]=" + encodeURI(fbimgurl) + "&amp;p[title]=" + encodeURI(fbtitle) + "&amp;p[summary]=" + encodeURI(fbsummary);
      window.open(
        sharerURL,
        'facebook-share-dialog', 
        'width=626,height=436'); 
      return  false;
  }
  </code></pre>
  
  <p>In the pop-up window, the Description text seems fine. But when seen in facebook, the description does not show up</p>
  
  <p>While sharing, <strong>Description(summary text)</strong> can be seen.
  <img src="https://i.stack.imgur.com/Ietju.png" alt="Description Can be seen"></p>
  
  <p>But <strong>Description(summary text)</strong> not showing in facebook.</p>
  
  <p><img src="https://i.stack.imgur.com/9BOMk.png" alt="Description not showing up"></p>