title: Apple CNA, auto-close after authentication?
body: <p>Trying to achieve <code>iOS</code> and <code>OSX</code> management
  of my Wifi captive hotspot, </p>
  
  <p>I dont manage to fully succeed in:</p>
  
  <ol>
  <li><p>CNA displays, => Done.</p></li>
  <li><p>CNA button <em>Cancel</em> becomes <em>Done</em> => Done.</p></li>
  <li><p>CNA closes. => <strong>My question: is it possible the CNA automatically Close ?</strong> (or to make it close with a button inside the rendered page into CNA)</p></li>
  </ol>
  
  <p>How can I manage 3. ? Have you already see this working (CNA autoclosing after authentication) ?</p>
  
  <p>Thanks --</p>