gsimpleproxyresolver: Make explicit that a port is needed for HTTP/HTTPS
Hello!
In working to upgrade from libsoup2 to libsoup3, I had to learn to use GSimpleProxyResolver
. After a lot of troubleshooting (and looking at libsoup2.4's code), I realized that an HTTP/HTTPS proxy requires the port to be enumerated in the URI, even if it is the default port. I wanted to add that documentation to glib in case others were looking too.