<code>Enumeration</code>. The header name is case insensitive. You can use this method with any request header.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>name</code> - a <code>String</code> specifying the header name</dd>
<dt>Returns:</dt>
<dd>an <code>Enumeration</code> containing the values of the requested header. If the request does not have any
 headers of that name return an empty enumeration. If the container does not allow access to header information,
 return null</dd>
</dl>
</section