grr

config/environments/production.rb

@@ -95,3 +95,5 @@ Rails.application.configure do
   # Skip DNS rebinding protection for the default health check endpoint.
   # config.host_authorization = { exclude: ->(request) { request.path == "/up" } }
 end
+
+Rails.application.routes.default_url_options.merge({ host: 'rescheduled.c3lingo.org', protocol: 'https' })