diff --git a/README.md b/README.md
index 9213fb5..d8867b5 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ gost - GO Simple Tunnel
 [![GoDoc](https://godoc.org/github.com/ginuerzh/gost?status.svg)](https://godoc.org/github.com/ginuerzh/gost)
 [![Build Status](https://travis-ci.org/ginuerzh/gost.svg?branch=master)](https://travis-ci.org/ginuerzh/gost)
 [![Go Report Card](https://goreportcard.com/badge/github.com/ginuerzh/gost)](https://goreportcard.com/report/github.com/ginuerzh/gost)
+[![codecov](https://codecov.io/gh/ginuerzh/gost/branch/2.7/graphs/badge.svg)](https://codecov.io/gh/ginuerzh/gost/branch/2.7)
 [![GitHub release](https://img.shields.io/github/release/ginuerzh/gost.svg)](https://github.com/ginuerzh/gost/releases/latest)
 [![Snap Status](https://build.snapcraft.io/badge/ginuerzh/gost.svg)](https://build.snapcraft.io/user/ginuerzh/gost)
 [![Docker Build Status](https://img.shields.io/docker/build/ginuerzh/gost.svg)](https://hub.docker.com/r/ginuerzh/gost/)
diff --git a/README_en.md b/README_en.md
index 7f5a4b5..e056336 100644
--- a/README_en.md
+++ b/README_en.md
@@ -6,6 +6,7 @@ gost - GO Simple Tunnel
 [![GoDoc](https://godoc.org/github.com/ginuerzh/gost?status.svg)](https://godoc.org/github.com/ginuerzh/gost)
 [![Build Status](https://travis-ci.org/ginuerzh/gost.svg?branch=master)](https://travis-ci.org/ginuerzh/gost)
 [![Go Report Card](https://goreportcard.com/badge/github.com/ginuerzh/gost)](https://goreportcard.com/report/github.com/ginuerzh/gost)
+[![codecov](https://codecov.io/gh/ginuerzh/gost/branch/2.7/graphs/badge.svg)](https://codecov.io/gh/ginuerzh/gost/branch/2.7)
 [![GitHub release](https://img.shields.io/github/release/ginuerzh/gost.svg)](https://github.com/ginuerzh/gost/releases/latest)
 [![Snap Status](https://build.snapcraft.io/badge/ginuerzh/gost.svg)](https://build.snapcraft.io/user/ginuerzh/gost)
 [![Docker Build Status](https://img.shields.io/docker/build/ginuerzh/gost.svg)](https://hub.docker.com/r/ginuerzh/gost/)
diff --git a/bypass.go b/bypass.go
index 5422b5e..6e8bed9 100644
--- a/bypass.go
+++ b/bypass.go
@@ -147,7 +147,9 @@ func NewBypassPatterns(reversed bool, patterns ...string) *Bypass {
 			matchers = append(matchers, m)
 		}
 	}
-	return NewBypass(reversed, matchers...)
+	bp := NewBypass(reversed)
+	bp.AddMatchers(matchers...)
+	return bp
 }
 
 // Contains reports whether the bypass includes addr.
@@ -307,13 +309,10 @@ func (bp *Bypass) Stopped() bool {
 }
 
 func (bp *Bypass) String() string {
-	bp.mux.RLock()
-	defer bp.mux.RUnlock()
-
 	b := &bytes.Buffer{}
-	fmt.Fprintf(b, "reversed: %v\n", bp.reversed)
-	fmt.Fprintf(b, "reload: %v\n", bp.period)
-	for _, m := range bp.matchers {
+	fmt.Fprintf(b, "reversed: %v\n", bp.Reversed())
+	fmt.Fprintf(b, "reload: %v\n", bp.Period())
+	for _, m := range bp.Matchers() {
 		b.WriteString(m.String())
 		b.WriteByte('\n')
 	}
diff --git a/http2_test.go b/http2_test.go
index 6142fe7..cdba55d 100644
--- a/http2_test.go
+++ b/http2_test.go
@@ -970,11 +970,15 @@ func TestHTTP2ProxyWithWebProbeResist(t *testing.T) {
 		Transporter: HTTP2Transporter(nil),
 	}
 
+	u, err := url.Parse(httpSrv.URL)
+	if err != nil {
+		t.Error(err)
+	}
 	server := &Server{
 		Listener: ln,
 		Handler: HTTP2Handler(
 			UsersHandlerOption(url.UserPassword("admin", "123456")),
-			ProbeResistHandlerOption("web:"+httpSrv.URL),
+			ProbeResistHandlerOption("web:"+u.Host),
 		),
 	}
 	go server.Run()
diff --git a/http_test.go b/http_test.go
index 1fbb470..0f99d7b 100644
--- a/http_test.go
+++ b/http_test.go
@@ -186,11 +186,15 @@ func TestHTTPProxyWithWebProbeResist(t *testing.T) {
 		t.Error(err)
 	}
 
+	u, err := url.Parse(httpSrv.URL)
+	if err != nil {
+		t.Error(err)
+	}
 	server := &Server{
 		Listener: ln,
 		Handler: HTTPHandler(
 			UsersHandlerOption(url.UserPassword("admin", "123456")),
-			ProbeResistHandlerOption("web:"+httpSrv.URL),
+			ProbeResistHandlerOption("web:"+u.Host),
 		),
 	}
 	go server.Run()