pub async fn connect_via_http_proxy(
proxy: &str,
host: &str,
port: u16,
) -> Result<TcpStream>Expand description
Establishes a TCP tunnel via an HTTP CONNECT proxy (RFC 7231 §4.3.6).
The returned TcpStream is an end-to-end tunnel — all subsequent reads
and writes go directly to the target host through the proxy.