From e96356bdaa6bb49ef31be3942e65b129910f9051 Mon Sep 17 00:00:00 2001
From: Vladislav Yarmak <vladislav@vm-0.com>
Date: Sun, 24 May 2020 01:51:19 +0300
Subject: [PATCH] disable HTTP/2 since it's not upgradeable to tunnel

---
 main.go | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/main.go b/main.go
index f3ef5c7..ea0495f 100644
--- a/main.go
+++ b/main.go
@@ -7,6 +7,7 @@ import (
     "flag"
     "time"
     "net/http"
+    "crypto/tls"
 )
 
 func perror(msg string) {
@@ -62,10 +63,12 @@ func run() int {
         return 3
     }
 
-    var server http.Server
-    server.Addr = args.bind_address
-    server.Handler = NewProxyHandler(args.timeout, auth, proxyLogger)
-    server.ErrorLog = log.New(logWriter, "HTTPSRV : ", log.LstdFlags | log.Lshortfile)
+    server := http.Server{
+        Addr: args.bind_address,
+        Handler: NewProxyHandler(args.timeout, auth, proxyLogger),
+        ErrorLog: log.New(logWriter, "HTTPSRV : ", log.LstdFlags | log.Lshortfile),
+        TLSNextProto: make(map[string]func(*http.Server, *tls.Conn, http.Handler)),  // No HTTP/2
+    }
 
     mainLogger.Info("Starting proxy server...")
     if args.cert != "" {