title: when I use iframe in ion-content, the ion-content scroll is not working
body: <pre><code>&lt;ion-view view-title="title"&gt;
    &lt;ion-content scroll="true"&gt;
      &lt;iframe src="{{link}}"&gt;&lt;/iframe&gt;
    &lt;/ion-content&gt;
  &lt;/ion-view&gt;
  </code></pre>
  
  <p>look at the code above.</p>
  
  <p>as the title says,when I use a iframe in the ion-content the scroll does't work.</p>
  
  <p>How to solve this problem.</p>