From 7789818d91efb24a6bc9873aac2c4c25946cfdbb Mon Sep 17 00:00:00 2001
From: WeizhongTu <weizhong.twz@alibaba-inc.com>
Date: Fri, 6 Sep 2024 11:45:04 +0800
Subject: [PATCH] feat: check domain empty string (#1130)

---
 primitive/nsresolver.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/primitive/nsresolver.go b/primitive/nsresolver.go
index 95e11962..d3f30667 100644
--- a/primitive/nsresolver.go
+++ b/primitive/nsresolver.go
@@ -99,7 +99,7 @@ type HttpResolver struct {
 
 func NewHttpResolver(instance string, domain ...string) *HttpResolver {
 	d := DEFAULT_NAMESRV_ADDR
-	if len(domain) > 0 {
+	if len(domain) > 0 && domain[0] != "" {
 		d = domain[0]
 	}
 	client := http.Client{Timeout: 10 * time.Second}