title: Catch ERR_BLOCKED_BY_RESPONSE in IFrame in javascript
body: <p>I have a javascript application developed with Ext.NET. I am loading pages in an IFrame.
  When user session expires, the IFrame tries to load the login screen from another domain and it can't, of course. 
  I would like to catch this in javascript and redirect the whole page.</p>
  
  <p>Is there a way to do this?</p>
  
  <p>"Refused to display <em>Domain Address</em> in a frame because it set 'X-Frame-Options' to 'sameorigin'."</p>