title: Pageview for Facebook Instant Articles in Google Analytics
body: <p>I have implemented the google analytical code at my instant article, but its 
  showing a big difference between google analytic and facebook instant pageview, I have implemented following code </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code> ga('require', 'displayfeatures');
  ga('set', 'campaignSource', 'Facebook-Instant'); 
  ga('set',  'campaignMedium', 'Instant Article');
  ga('send', 'pageview', window.location.href); 
  ga('send', 'pageview', location.pathname);</code></pre>
  </div>
  </div>
  </p>
  
  <p>can you please let me know why both analytic had pageview difference</p>