diff --git a/net/grpc/gateway/examples/echo/nginx.conf b/net/grpc/gateway/examples/echo/nginx.conf
index ffc4b4d..2c4d42a 100644
--- a/net/grpc/gateway/examples/echo/nginx.conf
+++ b/net/grpc/gateway/examples/echo/nginx.conf
@@ -28,7 +28,7 @@ http {
       if ($request_method = 'OPTIONS') {
         add_header 'Access-Control-Allow-Origin' '*';
         add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
-        add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Transfer-Encoding,Custom-Header-1,X-Accept-Content-Transfer-Encoding,X-Accept-Response-Streaming';
+        add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Transfer-Encoding,Custom-Header-1,X-Accept-Content-Transfer-Encoding,X-Accept-Response-Streaming,X-User-Agent';
         add_header 'Access-Control-Max-Age' 1728000;
         add_header 'Content-Type' 'text/plain charset=UTF-8';
         add_header 'Content-Length' 0;
@@ -37,7 +37,7 @@ http {
       if ($request_method = 'POST') {
         add_header 'Access-Control-Allow-Origin' '*';
         add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
-        add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Transfer-Encoding,Custom-Header-1,X-Accept-Content-Transfer-Encoding,X-Accept-Response-Streaming';
+        add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Transfer-Encoding,Custom-Header-1,X-Accept-Content-Transfer-Encoding,X-Accept-Response-Streaming,X-User-Agent';
         add_header 'Access-Control-Expose-Headers' 'Content-Transfer-Encoding';
       }
     }