diff --git a/nginx/sites-available/cloud.grupopralog.com.br.conf b/nginx/sites-available/cloud.grupopralog.com.br.conf
index 5fb2367..5447fa0 100644
--- a/nginx/sites-available/cloud.grupopralog.com.br.conf
+++ b/nginx/sites-available/cloud.grupopralog.com.br.conf
@@ -173,6 +173,16 @@ server {
         sub_filter 'srvoffice001.itguys.com.br' 'cloud.grupopralog.com.br';
         sub_filter_once off;
         sub_filter_types text/xml
+        if ($request_method = 'OPTIONS') {
+           more_set_headers 'Access-Control-Allow-Origin: "$scheme://$http_host"';
+            more_set_headers 'Access-Control-Allow-Methods: GET, POST, OPTIONS, HEAD';
+            more_set_headers 'Access-Control-Allow-Headers: Authorization, Content-Type, Accept, Origin, User-Agent, DNT, Cache-Control, X-Mx-ReqToken, Keep-Alive, X-Requested-With, If-Modified-Since, X-UserType';
+            more_set_headers 'Access-Control-Allow-Credentials: true' always;
+            more_set_headers 'Access-Control-Max-Age: 1728000' always;
+            return 204;
+        }
+        more_set_headers 'Access-Control-Allow-Origin: "$scheme://$http_host"';
+        more_set_headers 'Access-Control-Allow-Credentials: true';
     }
 
     # Office Online (WOPI)