title: JS event to see if Mobile Safari has been closed?
body: <p>Is there a JS event that gets triggered if a user closes Safari on their iPhone? onunload works if a person leaves a page, but is not called when the browser is closed.</p>
  
  <p>My hunch is, no, there is no event triggered, as closing Mobile Safari merely 'minimizes' it rather than actually closes it. Can anyone confirm?</p>