diff --git a/example/main.go b/example/main.go
index e56d1e8..0901450 100644
--- a/example/main.go
+++ b/example/main.go
@@ -5,6 +5,8 @@ import (
 	"flag"
 	"fmt"
 	"git.diulo.com/mogfee/kit"
+	"git.diulo.com/mogfee/kit/middleware"
+	"git.diulo.com/mogfee/kit/transport"
 	"git.diulo.com/mogfee/kit/transport/http"
 	http2 "net/http"
 )
@@ -35,28 +37,40 @@ func main() {
 }
 func runApp(host string) {
 	hs := http.NewServer(
+
 		http.Address(host),
 		//http.Middleware(
 		//logging.Server(),
 		//validate.Server(),
 		//jwt.JWT(),
 		//),
-		http.Filter(func(handler http2.Handler) http2.Handler {
-			return &cros{
-				h: handler,
+		//http.Filter(func(handler http2.Handler) http2.Handler {
+		//	return &cros{
+		//		h: handler,
+		//	}
+		//}),
+		http.Middleware(func(handler middleware.Handler) middleware.Handler {
+			return func(ctx context.Context, a any) (any, error) {
+				if tr, ok := transport.FromServerContext(ctx); ok {
+					header := tr.ReplyHeader()
+					header.Set("Access-Control-Allow-Origin", "*")
+					header.Set("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,PATCH,DELETE")
+					header.Set("Access-Control-Allow-Credentials", "true")
+					header.Set("Access-Control-Allow-Headers", "Content-Type,X-Requested-With,Access-Control-Allow-Credentials,User-Agent,Content-Length,Authorization")
+				}
+
+				return handler(ctx, a)
 			}
 		}),
 	)
 	route := hs.Route("/")
-	route.HEAD("/api/v1/answer/listCategory", func(ctx http.Context) error {
+	route.GET("/api/v1/answer/listCategory", func(ctx http.Context) error {
 		in := UserAddRequest{Name: "tom"}
 		http.SetOperation(ctx, "/api/abc")
 		h := ctx.Middleware(func(ctx context.Context, a any) (any, error) {
+			//tr, _ := transport.FromServerContext(ctx)
 			return AddUser(ctx, a.(*UserAddRequest))
 		})
-		//if tr, ok := transport.FromServerContext(ctx); ok {
-		//	fmt.Println(tr.Operation())
-		//}
 		out, err := h(ctx, &in)
 		if err != nil {
 			return err
diff --git a/transport/http/context.go b/transport/http/context.go
index f78685e..329ae35 100644
--- a/transport/http/context.go
+++ b/transport/http/context.go
@@ -158,10 +158,6 @@ func (w *wrapper) Returns(i interface{}, err error) error {
 
 func (w *wrapper) Result(i int, i2 interface{}) error {
 	w.w.WriteHeader(i)
-	//w.res.Header().Set("Access-Control-Allow-Origin", "*")
-	//w.res.Header().Set("Access-Control-Allow-Methods", "GET,POST,OPTIONS,PUT,PATCH,DELETE")
-	//w.res.Header().Set("Access-Control-Allow-Credentials", "true")
-	//w.res.Header().Set("Access-Control-Allow-Headers", "Content-Type,X-Requested-With,Access-Control-Allow-Credentials,User-Agent,Content-Length,Authorization")
 	return w.router.srv.enc(&w.w, w.req, i2)
 }
 
diff --git a/transport/http/server.go b/transport/http/server.go
index 57b1276..d073c6d 100644
--- a/transport/http/server.go
+++ b/transport/http/server.go
@@ -300,7 +300,7 @@ func (s *Server) filter() mux.MiddlewareFunc {
 				operation:    pathTemplate,
 				pathTemplate: pathTemplate,
 				reqHeader:    headerCarrier(req.Header),
-				replyHeader:  headerCarrier(req.Header),
+				replyHeader:  headerCarrier(w.Header()),
 				request:      req,
 			}
 			if s.endpoint != nil {