rule has matched.
In addition to the rules, a *match* stanza must contain exactly one
-follow-up line specifying the action to take if it mathces. Currently,
+follow-up line specifying the action to take if it matches. Currently,
only the *handler* action is recognized:
*handler* 'HANDLER'::
request on to the specified handler. A *match* stanza may
contain any number of *set* lines.
+*xset* 'HEADER' 'VALUE'::
+
+ *xset* does exactly the same thing as *set*, except that
+ 'HEADER' is automatically prepended with the `X-Ash-`
+ prefix. The intention is only to make configuration files
+ look nicer in this very common case.
+
*restpat* 'TEMPLATE'::
If the *match* stanza as a whole matches, 'TEMPLATE' is