title: How Google deals with the Back Button after logout?
body: <p>I've been searching the web trying to identify a good way to avoid show previous unsuitable information when the users click the Back Button.</p>
  
  <p>For instance:</p>
  
  <ul>
  <li>To avoid see information after logout.</li>
  <li>To avoid see a form after send and process it.</li>
  </ul>
  
  <p>I reviewed these posts and many others:
  <a href="https://stackoverflow.com/questions/8004534/avoid-go-back-after-logout">avoid go back after logout</a>
  <a href="https://stackoverflow.com/questions/10511893/prevent-back-button-after-logout">Prevent back button after logout</a></p>
  
  <p>I like the Google solution but I don't know how is implemented. When I logout from my Gmail account and then I click the Back Button, I'm not able to see my previous mails, I stay at the Login page.</p>
  
  <p>I'm not trying to change or avoid the Back Button, I just want to avoid to show that not suitable data.</p>
  
  <p>I tried to use diferent headers and meta but them didn't work.</p>