diff --git a/transport/http/codec.go b/transport/http/codec.go
index fd353d4..156448a 100644
--- a/transport/http/codec.go
+++ b/transport/http/codec.go
@@ -37,6 +37,7 @@ func DefaultRequestQuery(r *http.Request, v any) error {
 	return binding.BindQuery(r.URL.Query(), v)
 }
 func DefaultRequestDecoder(r *http.Request, v any) error {
+	fmt.Println("request decoder")
 	codec, ok := CodeForRequest(r, "Content-type")
 	if !ok {
 		return errors.BadRequest("CODEC", fmt.Sprintf("unregister Content-Type: %s", codec))
@@ -88,6 +89,7 @@ func DefaultErrorEncoder(w http.ResponseWriter, r *http.Request, err error) {
 func CodeForRequest(r *http.Request, name string) (encoding.Codec, bool) {
 	for _, accept := range r.Header[name] {
 		a := httputil.ContentSubtype(accept)
+		fmt.Println("aaa", name, a)
 		codec := encoding.GetCodec(a)
 		if codec != nil {
 			return codec, true