<p> When the <code>Expires</code> header is already part of the response
generated by the server, for example when generated by a CGI script or
proxied from an origin server, this module does not change or add
- an <code>Expires</code> or <code>Cache-Control</code> header..</p>
+ an <code>Expires</code> or <code>Cache-Control</code> header.</p>
</div>
<div id="quickview"><h3 class="directives">Directives</h3>
<ul id="toc">
<p> When the <code>Expires</code> header is already part of the response
generated by the server, for example when generated by a CGI script or
proxied from an origin server, this module does not change or add
- an <code>Expires</code> or <code>Cache-Control</code> header..</p>
+ an <code>Expires</code> or <code>Cache-Control</code> header.</p>
</summary>
<section id="AltSyn"><title>Alternate Interval Syntax</title>