For SSL through an HTTP proxy, clients use HTTP CONNECT[1], which turns converts the HTTP connection into a plain tunnel to the given host and port. https://to

For SSL through an HTTP proxy, clients use HTTP CONNECT[1], which turns converts the HTTP connection into a plain tunnel to the given host and port. https://tools.ietf.org/html/rfc2616#section-9.9 https://tools.ietf.org/html/rfc2616#section-9.9 https://en.wikipedia.org/wiki/HTTP_tunnel https://en.wikipedia.org/wiki/HTTP_tunnel