fix(response-handler): Send Accept-Ranges header on stream file

pkg/s3-proxy/response-handler/utils.go

@@ -108,6 +108,7 @@ func setHeadersFromObjectOutput(w http.ResponseWriter, obj *StreamInput) {
 	setStrHeader(w, "Content-Range", obj.ContentRange)
 	setStrHeader(w, "Content-Type", obj.ContentType)
 	setStrHeader(w, "ETag", obj.ETag)
+	setStrHeader(w, "Accept-Ranges", "bytes")
 	setTimeHeader(w, "Last-Modified", obj.LastModified)
 
 	httpStatus := determineHTTPStatus(obj)

pkg/s3-proxy/response-handler/utils_test.go

@@ -154,6 +154,8 @@ func Test_handler_manageHeaders(t *testing.T) {
 func Test_setHeadersFromObjectOutput(t *testing.T) {
 	// Tests data
 	now := time.Now()
+	headerEmpty := http.Header{}
+	headerEmpty.Add("Accept-Ranges", "bytes")
 	headerFullInput := http.Header{}
 	headerFullInput.Add("Cache-Control", "cachecontrol")
 	headerFullInput.Add("Expires", "expires")
@@ -164,6 +166,7 @@ func Test_setHeadersFromObjectOutput(t *testing.T) {
 	headerFullInput.Add("Content-Range", "bytes 200/200")
 	headerFullInput.Add("Content-Type", "contenttype")
 	headerFullInput.Add("ETag", "etag")
+	headerFullInput.Add("Accept-Ranges", "bytes")
 	headerFullInput.Add("Last-Modified", now.UTC().Format(http.TimeFormat))
 	headerPartialInput := http.Header{}
 	headerPartialInput.Add("Cache-Control", "cachecontrol")
@@ -174,6 +177,7 @@ func Test_setHeadersFromObjectOutput(t *testing.T) {
 	headerPartialInput.Add("Content-Length", "200")
 	headerPartialInput.Add("Content-Range", "bytes 200-1000/10000")
 	headerPartialInput.Add("Content-Type", "contenttype")
+	headerPartialInput.Add("Accept-Ranges", "bytes")
 	headerPartialInput.Add("ETag", "etag")
 	headerPartialInput.Add("Last-Modified", now.UTC().Format(http.TimeFormat))
 	// Structures
@@ -191,7 +195,7 @@ func Test_setHeadersFromObjectOutput(t *testing.T) {
 			args: args{
 				obj: &StreamInput{},
 			},
-			expectedHeaders: http.Header{},
+			expectedHeaders: headerEmpty,
 			expectedCode:    http.StatusOK,
 		},
 		{