Force CGI param to be processed with lowercased key
DowncaseVarname mv_pc, param2
This directive is only available for use in the global
(interchange.cfg) configuration file,
and will affect all websites running under the Interchange installation.
It will not work in a website's local (catalog.cfg)
This configuration directive was introduced in version 5.7.1,
and is therefore not available for use with any earlier Interchange version.
Given a space or comma-delimited list of CGI parameters,
Interchange will accept those parameters in any case from the query string
and force them to lower case.
This was developed primarily to address affiliates creating URIs with
but using an inconsistent case in the URI,
which resulted in Interchange ignoring the parameter.