ntire
        user-agent string, e.g. <code>.*Chrome.*</code>. If not specified, no
        regular expression will be defined and no user agents will have HTTP
        keep-alive disabled.</p>
      </td></tr><tr><td><code class="attributeName">securePagesWithPragma</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 by using
        <code>Cache-Control: p