Use wsgi.url_scheme instead of ad-hoc CGI checks. Instead of each place in hgweb_mod that needs to check for SSL or get the protocol scheme (http vs. https) doing it ad-hoc, make them just look at the wsgi.url_scheme which because of previous patches is now always set correctly.

#!/bin/sh

hg init a
cd a
hg -v log -v
hg -v log -v x
true