diff --git a/proxy/helper.go b/proxy/helper.go
index 4778404..142dabb 100644
--- a/proxy/helper.go
+++ b/proxy/helper.go
@@ -38,7 +38,7 @@ func LogErr(log *_log.Entry, err error) (loged bool) {
 // 转发流量
 // Read a => Write b
 // Read b => Write a
-func Transfer(log *_log.Entry, a, b io.ReadWriteCloser) {
+func transfer(log *_log.Entry, a, b io.ReadWriteCloser) {
 	done := make(chan struct{})
 	defer close(done)
 
diff --git a/proxy/middle.go b/proxy/middle.go
index b71ce45..c2a30d0 100644
--- a/proxy/middle.go
+++ b/proxy/middle.go
@@ -7,7 +7,6 @@ import (
 	"net"
 	"net/http"
 	"strings"
-	"time"
 
 	"github.com/lqqyt2423/go-mitmproxy/cert"
 	"github.com/lqqyt2423/go-mitmproxy/flow"
@@ -89,8 +88,8 @@ func NewMiddle(proxy *Proxy, caPath string) (Interceptor, error) {
 	}
 
 	server := &http.Server{
-		Handler:     m,
-		IdleTimeout: 5 * time.Second,
+		Handler: m,
+		// IdleTimeout: 5 * time.Second,
 
 		ConnContext: func(ctx context.Context, c net.Conn) context.Context {
 			return context.WithValue(ctx, flow.ConnContextKey, c.(*tls.Conn).NetConn().(*pipeConn).connContext)
@@ -115,6 +114,7 @@ func (m *Middle) Start() error {
 	return m.Server.ServeTLS(m.Listener, "", "")
 }
 
+// todo: should block until ServerConnected
 func (m *Middle) Dial(req *http.Request) (net.Conn, error) {
 	pipeClientConn, pipeServerConn := newPipes(req)
 	go m.intercept(pipeServerConn)
diff --git a/proxy/proxy.go b/proxy/proxy.go
index 8901288..d1d9f2a 100644
--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -369,9 +369,7 @@ func (proxy *Proxy) handleConnect(res http.ResponseWriter, req *http.Request) {
 
 	// cconn.(*net.TCPConn).SetLinger(0) // send RST other than FIN when finished, to avoid TIME_WAIT state
 	// cconn.(*net.TCPConn).SetKeepAlive(false)
-	defer func() {
-		cconn.Close()
-	}()
+	defer cconn.Close()
 
 	_, err = io.WriteString(cconn, "HTTP/1.1 200 Connection Established\r\n\r\n")
 	if err != nil {
@@ -379,5 +377,5 @@ func (proxy *Proxy) handleConnect(res http.ResponseWriter, req *http.Request) {
 		return
 	}
 
-	Transfer(log, conn, cconn)
+	transfer(log, conn, cconn)
 }
diff --git a/proxy/websocket.go b/proxy/websocket.go
index a03d3b3..f2a50ff 100644
--- a/proxy/websocket.go
+++ b/proxy/websocket.go
@@ -24,7 +24,7 @@ func (s *WebSocket) WS(conn net.Conn, host string) {
 		return
 	}
 	defer remoteConn.Close()
-	Transfer(log, conn, remoteConn)
+	transfer(log, conn, remoteConn)
 }
 
 func (s *WebSocket) WSS(res http.ResponseWriter, req *http.Request) {
@@ -61,5 +61,5 @@ func (s *WebSocket) WSS(res http.ResponseWriter, req *http.Request) {
 		log.Errorf("wss upgrade: %v\n", err)
 		return
 	}
-	Transfer(log, conn, cconn)
+	transfer(log, conn, cconn)
 }