From 4eb58a30823ec7f5a6a5b851dd4ef74bd5b52541 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=88=98=E7=A5=A5=E8=B6=85?= <iwind.liu@gmail.com>
Date: Sun, 2 Jul 2023 10:31:08 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BC=98=E5=8C=96ETag=E6=8A=A5=E5=A4=B4?=
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---
 internal/nodes/http_writer.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/internal/nodes/http_writer.go b/internal/nodes/http_writer.go
index 6658608..8614e8e 100644
--- a/internal/nodes/http_writer.go
+++ b/internal/nodes/http_writer.go
@@ -786,12 +786,18 @@ func (this *HTTPWriter) AddHeaders(header http.Header) {
 	if this.rawWriter == nil {
 		return
 	}
+	var newHeaders = this.rawWriter.Header()
 	for key, value := range header {
 		if key == "Connection" {
 			continue
 		}
-		for _, v := range value {
-			this.rawWriter.Header().Add(key, v)
+		switch key {
+		case "ETag":
+			newHeaders[key] =value
+		default:
+			for _, v := range value {
+				newHeaders.Add(key, v)
+			}
 		}
 	}
 }