Update cors.conf

Author: ZaneCEO

config/nginx/cors.conf

@@ -1,3 +1,9 @@
+## USAGE:
+#if ($request_method = 'OPTIONS') {
+#  include /usr/local/turbolab.it/webstackup/config/nginx/cors.conf;
+#  return 204;
+#}
+
 add_header Access-Control-Allow-Origin "*";
 add_header Access-Control-Allow-Credentials true;
 add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';