diff --git a/internal/service/script.go b/internal/service/script.go
index a661ee0..e7f1572 100644
--- a/internal/service/script.go
+++ b/internal/service/script.go
@@ -79,7 +79,9 @@ func (this *CmbService) QueryOrder(ctx http.Context) error {
 	}
 
 	ctx.Response().Header().Add("Content-Type", "text/html; charset=utf-8")
-	return ctx.String(http2.StatusOK, str)
+	ctx.Response().WriteHeader(http2.StatusOK)
+	_, err = ctx.Response().Write([]byte(str))
+	return err
 }
 
 func (this *CmbService) QueryStock(ctx http.Context) error {