diff --git a/ss_whitelist/nginx.conf b/ss_whitelist/nginx.conf
index 900bd95..8f4b79d 100644
--- a/ss_whitelist/nginx.conf
+++ b/ss_whitelist/nginx.conf
@@ -85,21 +85,24 @@ http {
     server{
         listen 80;
         listen [::]:80 ipv6only=on;
+
+        charset utf-8;
+
         location  / {
             auth_basic "";
             auth_basic_user_file /etc/openresty/auth;
             add_header Content-Type text/plain;
         }
+
         location = /auth {
             auth_basic "";
             auth_basic_user_file /etc/openresty/auth;
-            add_header Content-Type text/plain;
+            add_header Content-Type "text/plain; charset=utf-8";
             proxy_set_header   X-Real-IP        $remote_addr;
             proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
             content_by_lua_block {
                 clientIP=ngx.var.remote_addr
                 headers=ngx.req.get_headers()
-                ngx.header.content_type = "text/plain;charset=UTF-8"
                 file = io.open("/etc/openresty/allow.list","a+")
                 io.input(file)
                 io.output(file)
@@ -120,12 +123,12 @@ http {
                 os.execute("/usr/local/openresty/nginx/sbin/nginx -s reload")
             }
         }
+        
         location = /purge {
             auth_basic "";
             auth_basic_user_file /etc/openresty/auth;
-            add_header Content-Type text/plain;
+            add_header Content-Type "text/plain; charset=utf-8";
             content_by_lua_block {
-                ngx.header.content_type = "text/plain;charset=UTF-8";
                 file = io.open("/etc/openresty/allow.list","w+")
                 ngx.print("IP列表已被清空")
                 io.close(file)