title: loading external url in sencha touch 2
body: <p>i'm working on a simple application that loads an external url (google.com) into a tabpanel.
  using ajax request:<code>Ext.Ajax.request</code> is not working because of the access control allow origin.
  i know how to load local html, how to allow access control on local sever.
  my problem is when i don't have access to the external server.
  is there anyway to load an external url?
  i tried <code>Ext.util.JSONP.request</code> and it didn't work.</p>
  
  <p>here's a senchafiddle example on tappanel and loading url (not written by me):
  <a href="http://www.senchafiddle.com/#sT4bi#xLoOe" rel="nofollow">link</a></p>