Only wrap in encode if not already wrapped

caddyserver · Aug 2, 2023 · fb8c245 · fb8c245
1 parent 3dbb125
commit fb8c245
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/modules/caddyhttp/encode/encode.go b/modules/caddyhttp/encode/encode.go
@@ -167,7 +167,11 @@ func (enc *Encode) openResponseWriter(encodingName string, w http.ResponseWriter
 // initResponseWriter initializes the responseWriter instance
 // allocated in openResponseWriter, enabling mid-stack inlining.
 func (enc *Encode) initResponseWriter(rw *responseWriter, encodingName string, wrappedRW http.ResponseWriter) *responseWriter {
-	rw.ResponseWriter = &caddyhttp.ResponseWriterWrapper{ResponseWriter: wrappedRW}
+	if rww, ok := wrappedRW.(*caddyhttp.ResponseWriterWrapper); ok {
+		rw.ResponseWriter = rww
+	} else {
+		rw.ResponseWriter = &caddyhttp.ResponseWriterWrapper{ResponseWriter: wrappedRW}
+	}
 	rw.encodingName = encodingName
 	rw.config = enc