config/environments/production.rb

@@ -92,6 +92,9 @@ Rails.application.configure do
   #   "example.com",     # Allow requests from example.com
   #   /.*\.example\.com/ # Allow requests from subdomains like `www.example.com`
   # ]
+
+  config.hosts << "app.libreweddingplanner.org"
+
   # Skip DNS rebinding protection for the default health check endpoint.
-  # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
+  config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
 end