vendor/rails/actionpack/lib/action_controller/middlewares.rb

   1 use "Rack::Lock", :if => lambda {
   2   !ActionController::Base.allow_concurrency
   3 }
   4
   5 use "ActionController::Failsafe"
   6
   7 use lambda { ActionController::Base.session_store },
   8     lambda { ActionController::Base.session_options }
   9
  10 use "ActionController::RewindableInput"
  11 use "ActionController::ParamsParser"
  12 use "Rack::MethodOverride"
  13 use "Rack::Head"