fix

app/models/setting.rb

@@ -163,7 +163,7 @@ class Setting < ActiveRecord::Base
   end
 
   # fixed domain url in development. tantantan's bug
-  if Rails.env.production?
+  if Rails.env.development?
     methods.map do |m|
       define_singleton_method m do; nil; end if m.to_s =~ /([a-zA-Z]+_domain)$/
     end