Adds a URI-scheme-specific proxy. URIs whose scheme matches @uri_scheme will be proxied via @proxy_uri.
As with the default proxy URI, if @proxy_uri starts with "socks://", it will be treated as referring to
all three of the socks5, socks4a, and socks4 proxy types.
Adds a URI-scheme-specific proxy. URIs whose scheme matches @uri_scheme will be proxied via @proxy_uri. As with the default proxy URI, if @proxy_uri starts with "socks://", it will be treated as referring to all three of the socks5, socks4a, and socks4 proxy types.