diff.diff

diff --git i/actionpack/lib/action_controller/metal/live.rb w/actionpack/lib/action_controller/metal/live.rb
index 6804e57..5b4ad86 100644
--- i/actionpack/lib/action_controller/metal/live.rb
+++ w/actionpack/lib/action_controller/metal/live.rb
@@ -36,8 +36,7 @@ module ActionController
     extend ActiveSupport::Concern
 
     module ClassMethods
-      def make_response!(response)
-        request = response.request
+      def make_response!(request)
         if request.get_header("HTTP_VERSION") == "HTTP/1.0"
           super
         else
@@ -288,8 +287,5 @@ module ActionController
       response.close if response
     end
 
-    def set_response!(response)
-      @_response = self.class.make_response! response
-    end
   end
 end