diff --git a/docs/nginx/monolith-sample.conf b/docs/nginx/monolith-sample.conf
index f5461d52..0344aa96 100644
--- a/docs/nginx/monolith-sample.conf
+++ b/docs/nginx/monolith-sample.conf
@@ -16,6 +16,9 @@ server {
     }
 
     location /.well-known/matrix/client {
+        # If your sever_name here doesn't match your matrix homeserver URL
+        # (e.g. hostname.com as server_name and matrix.hostname.com as homeserver URL)
+        # add_header Access-Control-Allow-Origin '*';
         return 200 '{ "m.homeserver": { "base_url": "https://my.hostname.com" } }';
     }
 
diff --git a/docs/nginx/polylith-sample.conf b/docs/nginx/polylith-sample.conf
index 7e8eb4a5..274d7565 100644
--- a/docs/nginx/polylith-sample.conf
+++ b/docs/nginx/polylith-sample.conf
@@ -16,6 +16,9 @@ server {
     }
 
     location /.well-known/matrix/client {
+        # If your sever_name here doesn't match your matrix homeserver URL
+        # (e.g. hostname.com as server_name and matrix.hostname.com as homeserver URL)
+        # add_header Access-Control-Allow-Origin '*';
         return 200 '{ "m.homeserver": { "base_url": "https://my.hostname.com" } }';
     }