title: Selective clearing of items in HTML5 application cache
body: <p>The HTML5 application cache API requires the browser to re-load all files declared in the CACHE section of the manifest file (when the manifest file has changed and update is called on the applicationCache API).</p>
  
  <p>My manifest file contains thousands of entries.  Are there any tricks to telling the browser to only re-load files that have changed?</p>