http://stackoverflow.com/questions/16561066/ruby-on-rails-4-app-not-works-in-iframe
config/application.rb
config.action_dispatch.default_headers = { 'X-Frame-Options' => 'ALLOWALL' }
http://stackoverflow.com/questions/16561066/ruby-on-rails-4-app-not-works-in-iframe
config/application.rb
config.action_dispatch.default_headers = { 'X-Frame-Options' => 'ALLOWALL' }