From cb849bd6648294feb42eac1081aece589f20eaf6 Mon Sep 17 00:00:00 2001
From: Matthew Holt <mholt@users.noreply.github.com>
Date: Wed, 31 Aug 2022 18:49:34 -0600
Subject: [PATCH] caddyhttp: Disable draft versions of QUIC

See comment in #4996
---
 modules/caddyhttp/server.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/modules/caddyhttp/server.go b/modules/caddyhttp/server.go
index eec4d1b2..dcf9af1a 100644
--- a/modules/caddyhttp/server.go
+++ b/modules/caddyhttp/server.go
@@ -33,6 +33,7 @@ import (
 	"github.com/caddyserver/caddy/v2/modules/caddyevents"
 	"github.com/caddyserver/caddy/v2/modules/caddytls"
 	"github.com/caddyserver/certmagic"
+	"github.com/lucas-clemente/quic-go"
 	"github.com/lucas-clemente/quic-go/http3"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
@@ -486,6 +487,10 @@ func (s *Server) serveHTTP3(hostport string, tlsCfg *tls.Config) error {
 			Handler:        s,
 			TLSConfig:      tlsCfg,
 			MaxHeaderBytes: s.MaxHeaderBytes,
+			// TODO: remove this config when draft versions are no longer supported (we have no need to support drafts)
+			QuicConfig: &quic.Config{
+				Versions: []quic.VersionNumber{quic.Version1, quic.Version2},
+			},
 		}
 	}