than once.</dd>
<dt><code>merge</code></dt>
- <dd>The response header is appended to any existing header of
+ <dd>The request header is appended to any existing header of
the same name, unless the value to be appended already appears in the
existing header's comma-delimited list of values. When a new value is
merged onto an existing header it is separated from the existing header
<var>value</var> must be omitted.</dd>
<dt><code>edit</code></dt>
- <dd>If this request header exists, its value is transformed according
+ <dd>If this response header exists, its value is transformed according
to a <glossary ref="regex">regular expression</glossary>
search-and-replace. The <var>value</var> argument is a <glossary
ref="regex">regular expression</glossary>, and the <var>replacement</var>