title: Want to show svg in an iframe and show a scrollbar to let users to pan the image in chrome/ie8
body: <p>html:</p>
  
  <pre><code> &lt;iframe scrolling="yes" src="svgfile.svg"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>svgfile.svg:  </p>
  
  <pre><code> &lt;svg width="2636pt" height="2478pt" viewBox="-1 -1 2635 2477" xmlns="..."&gt;
       &lt;g id="node1" class="node"&gt;....&lt;/g&gt;
       ...
   &lt;/svg&gt;
  </code></pre>
  
  <p>This won't show the scrollbar in chrome/ie8...<br>
  This was OK in FF...</p>
  
  <p>Other solution not using iframe can be acceptable.<br>
  Or just rescaling the whole svg image(bigger than the original page) to fit to the original page might be ok as well.</p>