From c61c106542ae4122877c4435a1f86e589240e625 Mon Sep 17 00:00:00 2001
From: Aoang <aoang@x2ox.com>
Date: Fri, 18 Feb 2022 14:48:57 +0800
Subject: [PATCH] Fix http proxy behavior

Add Host header fix behavior
https://datatracker.ietf.org/doc/html/rfc7230#section-5.4
---
 fasthttpproxy/http.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fasthttpproxy/http.go b/fasthttpproxy/http.go
index 6bc9c1e5b3..2d918135f2 100644
--- a/fasthttpproxy/http.go
+++ b/fasthttpproxy/http.go
@@ -49,7 +49,7 @@ func FasthttpHTTPDialerTimeout(proxy string, timeout time.Duration) fasthttp.Dia
 			return nil, err
 		}
 
-		req := "CONNECT " + addr + " HTTP/1.1\r\n"
+		req := fmt.Sprintf("CONNECT %s HTTP/1.1\r\nHost: %s\r\n", addr, addr)
 		if auth != "" {
 			req += "Proxy-Authorization: Basic " + auth + "\r\n"
 		}