From 9cf756b188529edd215988bd7b23fd91fd691445 Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Sun, 31 Oct 2021 18:06:43 -0700
Subject: [PATCH] S3: support CORS

related to https://github.com/chrislusf/seaweedfs/issues/1271
---
 weed/s3api/s3err/error_handler.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/weed/s3api/s3err/error_handler.go b/weed/s3api/s3err/error_handler.go
index 7e5e262a6..3cfdaafef 100644
--- a/weed/s3api/s3err/error_handler.go
+++ b/weed/s3api/s3err/error_handler.go
@@ -64,6 +64,10 @@ func EncodeXMLResponse(response interface{}) []byte {
 func setCommonHeaders(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("x-amz-request-id", fmt.Sprintf("%d", time.Now().UnixNano()))
 	w.Header().Set("Accept-Ranges", "bytes")
+	if r.Header.Get("Origin") != "" {
+		w.Header().Set("Access-Control-Allow-Origin", "*")
+		w.Header().Set("Access-Control-Allow-Credentials", "true")
+	}
 }
 
 func WriteResponse(w http.ResponseWriter, r *http.Request, statusCode int, response []byte, mType mimeType) {