diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index 9eed3e4a..003dd27c 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -101,7 +101,7 @@ 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,User-Agent';
+          add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
           add_header 'Access-Control-Max-Age' 43200;
           add_header 'Content-Type' 'text/plain charset=UTF-8';
           add_header 'Content-Length' 0;