v5.2
v7.2 v7.1 v7.0 v6.1 v6.0 v5.2
GitHub

Required Files
Namespace
- Module
- Class

Ruby on Rails 5.2.8

default_middleware_stack.rb

railties/lib/rails/application/default_middleware_stack.rb on GitHub

Required Files

action_dispatch/http/rack_cache
rack/cache

Namespace

Module

ActionDispatch
Rails

Class

ActionDispatch::ContentSecurityPolicy
Rails::Application
Rails::Application::DefaultMiddlewareStack