diff --git a/nginx.conf.sigil b/nginx.conf.sigil
index a51cc4a..9c153b2 100644
--- a/nginx.conf.sigil
+++ b/nginx.conf.sigil
@@ -60,12 +60,15 @@ server {
       add_header 'Cache-Control' 'no-cache';
       add_header 'Content-Type' 'text/event-stream';
       add_header 'Connection' 'keep-alive';
-      add_header 'Access-Control-Allow-Origin' '$allow_origin';
-     add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
-     add_header 'Access-Control-Allow-Headers' 'Content-Type, Authorization';
-     proxy_http_version 1.1;
-     proxy_set_header Upgrade $http_upgrade;
-     proxy_set_header Connection "upgrade";
+      proxy_set_header Upgrade $http_upgrade;
+      proxy_set_header Connection "upgrade";
+      proxy_buffering off;
+      proxy_cache off;
+      proxy_read_timeout 36000s;
+      {{ $proxy_settings }}
+      {{ $cors_headers_options }}
+      {{ $cors_headers_post }}
+      {{ $cors_headers_get }}
     }
 
     # Error pages