title: Cross domain iframe issue
body: <p>For say i have a Site called example.com on which iframe is embedded of domain iframe.net, now i want to read the content of iframe and pass some parameter to display a textual message. Like Hi with username. </p>
  
  <p>Now the problem is this able not able to make connection between the two , even am not able to get the innerHTML of iframe i used following approach</p>
  
  <pre><code>document.getElementById('myframe').contentWindow.document.body.innerHTML;
  </code></pre>
  
  <p>It throws error "Permission denied to access property"</p>
  
  <p>Do anyone know how to read and write in cross domain platform</p>