title: Mobile Web App not clearing cache properly
body: <p>I've been developing a mobile web app for iPad and I've been running into an issue while testing my code.  </p>
  
  <p>Occasionally, and seemingly at random, the iPad will stop properly updating all of the JS libraries I've written.  After updating some code and posting the changes, I will notice some files will have properly updated while others have not.  This bahavior persists after numerous cache clears, power cycles, and wifi toggles.  </p>
  
  <p>If I load the app in safari i have no issues with it, but when I load from the app's homescreen icon the problem re-appears.  I've done simple tests like adding an alert line to a library and that alert fires without issue anywhere except within the mobile-web-app window. Then, seemingly at random again, the problem is disappears, sometimes it takes 5 minutes, sometimes it takes an hour.  </p>
  
  <p>I see this behavior regardless of whether the app is using a manifest file or not.  I have also tried to flush these legacy files by updating the manifest file to force the recache that way, but the problem still persists. </p>
  
  <p>Does anyone know if this is a known issue with iPad?  Is there anything on my end that can be done to address this?</p>