Support for URL-based proxying

Hi,

Does or could polipo support a URL based proxy? Where you target: http://polipohost.tld:8123/http://urliwanttoget/

Basically the same as: https://github.com/zhuzhuor/urlproxy/

The use for this is with wanting to cache HTTPS repositories. Say you have a repository that is only HTTPS accessible. You could write your configuration file to use http://polipohost.tld:8123/https://repohost/ and treat it as a normal proxied request, getting speed benefits without having to do SSL MiTM.

Thanks,
Teran