on exists at the
        point where users are authenticated. This is to prevent session fixation
        attacks. If not set, the default value of <code>true</code> will be
        used.</p>
      </td></tr><tr><td><code class="attributeName">disableProxyCaching</code></td><td>
        <p>Controls the caching of pages that are protected by security
        constraints. Setting this to <code>false</code> may help work around
        caching issues in some browsers but will also cause secured pages to be
   