diff --git a/conn.go b/conn.go
index 91a7e49..c5f5935 100644
--- a/conn.go
+++ b/conn.go
@@ -90,7 +90,9 @@ func (obj *connPool) taskMain(conn *connecotr, task *reqTask) (err error) {
 			case <-conn.forceCtx.Done():
 				err = context.Cause(conn.forceCtx)
 			case <-task.reqCtx.Context().Done():
-				err = context.Cause(task.reqCtx.Context())
+				if context.Cause(task.reqCtx.Context()) != errNoErr {
+					err = context.Cause(task.reqCtx.Context())
+				}
 			case <-task.bodyCtx.Done():
 				if context.Cause(task.bodyCtx) != errNoErr {
 					err = context.Cause(task.bodyCtx)
diff --git a/requests.go b/requests.go
index 2b484e2..e411f39 100644
--- a/requests.go
+++ b/requests.go
@@ -142,7 +142,7 @@ func (obj *Client) retryRequest(ctx context.Context, option RequestOption, uhref
 		if err != nil || loc == nil {
 			return
 		}
-		response.Close()
+		response.Close(nil)
 		switch response.StatusCode() {
 		case 307, 308:
 			if response.Option().readOne {
@@ -244,9 +244,10 @@ func (obj *Client) request(ctx *Response) (err error) {
 	}
 	//init ctx,cnl
 	if ctx.option.Timeout > 0 { //超时
-		ctx.ctx, ctx.cnl = context.WithTimeout(ctx.Context(), ctx.option.Timeout)
+		ctx.ctx, _ = context.WithTimeout(ctx.ctx, ctx.option.Timeout)
+		ctx.ctx, ctx.cnl = context.WithCancelCause(ctx.ctx)
 	} else {
-		ctx.ctx, ctx.cnl = context.WithCancel(ctx.Context())
+		ctx.ctx, ctx.cnl = context.WithCancelCause(ctx.Context())
 	}
 	var isWebsocket bool
 	//init Scheme
diff --git a/response.go b/response.go
index 84bd169..8d991b0 100644
--- a/response.go
+++ b/response.go
@@ -63,7 +63,7 @@ type Response struct {
 	response     *http.Response
 	webSocket    *websocket.Conn
 	sse          *SSE
-	cnl          context.CancelFunc
+	cnl          context.CancelCauseFunc
 	option       *RequestOption
 	client       *Client
 	encoding     string
@@ -316,10 +316,10 @@ func (obj *Response) ReadBody() (err error) {
 		return nil
 	}
 	defer func() {
+		obj.Close(err)
 		if err != nil {
 			obj.CloseConn()
 		} else {
-			obj.Close()
 			if obj.response.StatusCode == 101 && obj.webSocket == nil {
 				obj.webSocket = websocket.NewConn(newFakeConn(obj.body.connStream()), func() { obj.CloseConn() }, true, obj.Headers().Get("Sec-WebSocket-Extensions"))
 			}
@@ -374,14 +374,22 @@ func (obj *Response) Proxys() []Address {
 
 // close
 func (obj *Response) CloseConn() {
+	obj.Close(errors.New("response close conn"))
 	if obj.body != nil {
 		obj.body.CloseConn()
 	}
 }
 
 // close
-func (obj *Response) Close() {
+func (obj *Response) Close(err error) {
 	if obj.body != nil {
 		obj.body.Close()
 	}
+	if obj.cnl != nil {
+		if err == nil {
+			obj.cnl(errNoErr)
+		} else {
+			obj.cnl(err)
+		}
+	}
 }