diff --git a/internal/ihttp/response.go b/internal/ihttp/response.go
index 1de39af..3d2089e 100644
--- a/internal/ihttp/response.go
+++ b/internal/ihttp/response.go
@@ -1,8 +1,8 @@
 package ihttp
 
 import (
-	"bytes"
 	"github.com/chainreactors/logs"
+	"github.com/chainreactors/utils/httputils"
 	"github.com/valyala/fasthttp"
 	"io"
 	"net/http"
@@ -93,15 +93,7 @@ func (r *Response) Header() []byte {
 	if r.FastResponse != nil {
 		return r.FastResponse.Header.Header()
 	} else if r.StandardResponse != nil {
-		var header bytes.Buffer
-		header.WriteString(r.StandardResponse.Proto + " " + r.StandardResponse.Status)
-		for k, v := range r.StandardResponse.Header {
-			for _, i := range v {
-				header.WriteString(k + ": " + i + "\r\n")
-			}
-		}
-		header.WriteString("\r\n")
-		return header.Bytes()
+		return append(httputils.ReadRawHeader(r.StandardResponse), []byte("\r\n")...)
 	} else {
 		return nil
 	}
diff --git a/pkg/baseline.go b/pkg/baseline.go
index 350e066..0099040 100644
--- a/pkg/baseline.go
+++ b/pkg/baseline.go
@@ -36,9 +36,10 @@ func NewBaseline(u, host string, resp *ihttp.Response) *Baseline {
 	bl.HeaderLength = len(bl.Header)
 
 	if i := resp.ContentLength(); ihttp.CheckBodySize(i) {
-		body := resp.Body()
-		bl.Body = make([]byte, len(body))
-		copy(bl.Body, body)
+		if body := resp.Body(); body != nil {
+			bl.Body = make([]byte, len(body))
+			copy(bl.Body, body)
+		}
 
 		if i == -1 {
 			bl.Chunked = true