title: Cross-Domain iframe communication
body: <p>I have an iframe being created on a page, and the page's domain is being explicitly set to 'xyz.com' but the iframe's domain is defaulting to 'dev.xyz.com', which is the actual domain i'm developing for.</p>
  
  <p>The problem is, when I try to access that iframe via iframe.contentWindow.document, it fails due to the difference in domain.</p>
  
  <p>I've tried setting the iframe's src to a file with document.domain = 'xyz.com' but that doesn't seem to be doing the trick... </p>
  
  <p>Any ideas?</p>