Merge pull request #28 from Discours/new-cors

new CORS header

nginx.conf.sigil

@@ -5,7 +5,7 @@
 {{ $upstream_port := index $port_map_list 2 }}
 
 map $http_origin $allow_origin {
-    ~^https?://(.*\.)?localhost:3000|testing.discours.io|new.discours.io|discours.io()(:\d+)?$ $http_origin;
+    ~^https?:\/\/((.*\.)?localhost(:\d+)?|discoursio-webapp.*\.vercel\.app|(.*\.)?discours\.io(:\d+)?)$ $http_origin;
     default "";
 }