1 files changed, 7 insertions, 5 deletions
diff --git a/actionpack/lib/action_controller/metal.rb b/actionpack/lib/action_controller/metal.rb
index 0133b2ecbc..b38f990efa 100644
--- a/actionpack/lib/action_controller/metal.rb
+++ b/actionpack/lib/action_controller/metal.rb
@@ -1,5 +1,3 @@
-require 'active_support/core_ext/class/attribute'
-require 'active_support/core_ext/object/blank'
 require 'action_dispatch/middleware/stack'
 
 module ActionController
@@ -181,9 +179,13 @@ module ActionController
       @_status = Rack::Utils.status_code(status)
     end
 
-    def response_body=(val)
-      body = val.nil? ? nil : (val.respond_to?(:each) ? val : [val])
-      super body
+    def response_body=(body)
+      body = [body] unless body.nil? || body.respond_to?(:each)
+      super
+    end
+
+    def performed?
+      response_body || (response && response.committed?)
     end
 
     def dispatch(name, request) #:nodoc: