title: Prevent web app restart on iPad task switch
body: <p>I have a web app running on an iPad.  It is running in full-screen mode.  If I task switch to another app (by double-clicking the home button etc), then switch back to my web app, then my web app restarts.</p>
  
  <p>Is there any way to prevent the web app from restarting when it receives the focus after an iPad task switch?  Obviously I just want it to show itself in exactly the state it was in when it lost focus.</p>
  
  <p>Thanks.</p>