diff --git a/nginx.conf.sigil b/nginx.conf.sigil
index f930d46e..8de054e7 100644
--- a/nginx.conf.sigil
+++ b/nginx.conf.sigil
@@ -5,7 +5,7 @@
 {{ $upstream_port := index $port_map_list 2 }}
 
 map $http_origin $allow_origin {
-    ~^https?:\/\/((.*\.)?localhost(:\d+)?|discoursio-webapp-git(.*)?\.vercel\.app|(.*\.)?discours\.io(:\d+)?)$ $http_origin;
+    ~^https?:\/\/((.*\.)?localhost(:\d+)?|discoursio-webapp(-(.*))?\.vercel\.app|(.*\.)?discours\.io)$ $http_origin;
     default "";
 }
 
@@ -113,8 +113,8 @@ server {
     proxy_set_header X-Request-Start $msec;
     {{ if $.PROXY_X_FORWARDED_SSL }}proxy_set_header X-Forwarded-Ssl {{ $.PROXY_X_FORWARDED_SSL }};{{ end }}
 
-     if ($request_method = 'OPTIONS') {
-        add_header 'Access-Control-Allow-Origin' $allow_origin always;
+    if ($request_method = 'OPTIONS') {
+        add_header 'Access-Control-Allow-Origin' '$allow_origin' always;
         add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
         #
         # Custom headers and headers various browsers *should* be OK with but aren't
@@ -131,7 +131,7 @@ server {
      }
 
      if ($request_method = 'POST') {
-        add_header 'Access-Control-Allow-Origin' $allow_origin always;
+        add_header 'Access-Control-Allow-Origin' '$allow_origin' always;
         add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
         add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
         add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;
@@ -139,7 +139,7 @@ server {
      }
 
      if ($request_method = 'GET') {
-        add_header 'Access-Control-Allow-Origin' $allow_origin always;
+        add_header 'Access-Control-Allow-Origin' '$allow_origin' always;
         add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
         add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
         add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range' always;