title: Open browser in Android Captive Portal after sign in
body: <p>I am making a captive portal for Android:</p>
  
  <ol>
  <li>the user connect to Wi-Fi</li>
  <li>the captive portal open with informations for login (302 of /generate_204)</li>
  <li>I post the informations and release the user to use internet (204 of /generate_204)</li>
  <li><strong>THE PROBLEM</strong>: the captive portal close and the browser not open</li>
  </ol>
  
  <p>My purpose is - after the post the informations - release the user, close captive portal and open the browser.</p>
  
  <p>How I do this?</p>