title: CakePHP Session Timeout on Inactivity only
body: <p>So the crux of this question is just how to prevent CakePHP from de-authenticating a session ONLY after a period of inactivity.</p>
  
  <p>So, if the user does nothing then I expect CakePHP to log them out after a period of 30 minutes. However, if the user chooses to visit a page on the 28th minute of inactivity, then CakePHP should 'reset' it's timeout counter.</p>
  
  <p>This currently isn't happening. Regardless of activity, CakePHP times out after the specified time in my core configuration (app/Config/core.php).</p>
  
  <p>Here's my config code:</p>
  
  <pre><code>Configure::write('Session', array(
      'defaults' =&gt; 'cake',
      'timeout' =&gt; '30'
  ));
  </code></pre>
  
  <p>Any ideas?</p>