title: iFrame cookie only being read after page refresh
body: <p>I have a .net site that runs in an iFrame. In order to track various things on the page I use a cookie. I'm using a p3p header to ensure IE can read the cookie.
  However it doesn't always seem to work. If I follow the steps below I can recreate an issue.</p>
  
  <ol>
  <li>Delete all cookies from IE</li>
  <li>Browse to iFrame containing my pages</li>
  <li>Cookie is read OK.</li>
  <li>Close browser</li>
  <li>Navigate back to iFrame</li>
  <li>Cookie not read</li>
  <li>Refresh the page (F5)</li>
  <li>Cookie is read OK</li>
  <li>Repeat from step 4. ad infinitum...</li>
  </ol>
  
  <p>Is this a caching issue in the parent page or the iFramed page?
  If it is a caching issue how can I ensure IE doesn't cache this specific page and instead reloads the page along with the cookie?</p>
  
  <p>Needless to say this doesn't happen in Chrome or Firefox.</p>
  
  <p>Any light that could be shed on this will be much appreciated.</p>
  
  <p>S.</p>