QUIC connections are always encrypted and authenticated, so they should work just fine with a CONNECT-style proxy that supports UDP. (I don't know for sure; I'm

QUIC connections are always encrypted and authenticated, so they should work just fine with a CONNECT-style proxy that supports UDP. (I don't know for sure; I'm just reasoning from first principles.) EDIT: after thinking a few minutes, I'm not sure a "UDP proxy" is a meaningful concept except in very limited circumstances such as forwarding only to a single destination, because there's no connection to establish that a proxy server could know anything about. Maybe proxy servers don't have a place in a QUIC world.