I'm abandoning this, as it turns out it doesn't address our (Verizon) issue
that I need to handle. I had thought that regex_remap matched against the
pristine URL. But it matches against the requestURL passed to
TSRemapDoRemap(). In ATS7, the pristine URL was passed to the first remap
plugin, an
1. Two-character string substitutions can begin with ^ as well as $. If ^
is used, and the substitution is a URL component, the component will be the
one in the pristine, rather than the remapped, URL. So, for example, $h is
the host in the remapped URL, and ^h is the host in the pristine URL.