git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@572618
13f79535-47bb-0310-9956-
ffa450edef68
<p>HTTP offers a number of headers which allow a client, or cache
to discern between different versions of the same content. For
example if a resource was served with an "Etag:" header, it is
- possible to make a conditional request with an "If-Match:"
+ possible to make a conditional request with an "If-None-Match:"
header. If a resource was served with a "Last-Modified:" header
it is possible to make a conditional request with an
"If-Modified-Since:" header, and so on.</p>