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-rw-r--r--railties/lib/rails/application.rb6
1 files changed, 3 insertions, 3 deletions
diff --git a/railties/lib/rails/application.rb b/railties/lib/rails/application.rb
index 9e57354047..e65c20de2c 100644
--- a/railties/lib/rails/application.rb
+++ b/railties/lib/rails/application.rb
@@ -210,9 +210,9 @@ module Rails
initializer :initialize_middleware_stack do
if config.frameworks.include?(:action_controller)
- config.middleware.use(::Rack::Lock) unless ActionController::Base.allow_concurrency
- config.middleware.use(ActionDispatch::ShowExceptions, ActionController::Base.consider_all_requests_local)
- config.middleware.use(ActionDispatch::Callbacks, ActionController::Dispatcher.prepare_each_request)
+ config.middleware.use(::Rack::Lock, :if => lambda { ActionController::Base.allow_concurrency })
+ config.middleware.use(ActionDispatch::ShowExceptions, lambda { ActionController::Base.consider_all_requests_local })
+ config.middleware.use(ActionDispatch::Callbacks, lambda { ActionController::Dispatcher.prepare_each_request })
config.middleware.use(lambda { ActionController::Base.session_store }, lambda { ActionController::Base.session_options })
config.middleware.use(ActionDispatch::ParamsParser)
config.middleware.use(::Rack::MethodOverride)