Iframe content not loading in firefox
<p>I have iframe in my pop up. the content of iframe's set by </p>

<pre><code>$('.document-acceptance-container .documentIframe')
  .contents()
  .find('body')
  .html(this.model.get('data').DocumentRecord.DocumentBodyPath);
</code></pre>

<p>It work's fine in Chrome and content of iframe is loaded, but in firefox iframe is empty. I set </p>

<p><code>security.mixed_content.block_active_content</code> to <code>false</code>  and disabled addblock.</p>

<p>But it didn't help me.If I set a breakpoint on this line in debug mode in firefox - content was loaded. 
Have you any idea?
P.S: <code>DocumentRecord.DocumentBodyPath</code> is html code</p>