From 23f0b536e062385b94572d9572474d67aadea6d1 Mon Sep 17 00:00:00 2001
From: kateoh <magni.teoh@lgms.global>
Date: Wed, 17 Sep 2025 13:26:10 +0800
Subject: [PATCH] preserve original Host and set Host header to support virtual
 host

---
 internal/proxy/http/proxy.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/internal/proxy/http/proxy.go b/internal/proxy/http/proxy.go
index 6c63658..0d20274 100644
--- a/internal/proxy/http/proxy.go
+++ b/internal/proxy/http/proxy.go
@@ -144,12 +144,19 @@ func (p *Proxy) proxyRequest(
 	e wrapper.Entity,
 	logger zerolog.Logger,
 ) {
+
+	origHost := r.Host
+	if origHost == "" {
+		origHost = r.Header.Get("Host")
+	}
+
 	r.URL.Scheme = url.Scheme
 	r.URL.Host = url.Host
 	r.URL.Path = url.Path + r.URL.Path
 
 	r.RequestURI = ""
-	r.Host = ""
+	r.Host = origHost
+	r.Header.Set("Host", origHost)
 	r.Header.Del("Accept-Encoding")
 
 	xForwardedFor := r.Header.Get("X-Forwarded-For")