diff --git a/transport/http/codec.go b/transport/http/codec.go
index dac6808..4013bca 100644
--- a/transport/http/codec.go
+++ b/transport/http/codec.go
@@ -87,8 +87,9 @@ 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] {
-		fmt.Println(accept)
-		codec := encoding.GetCodec(httputil.ContentSubtype(accept))
+		a := httputil.ContentSubtype(accept)
+		fmt.Println("aaa", a)
+		codec := encoding.GetCodec(a)
 		if codec != nil {
 			return codec, true
 		}