1 files changed, 11 insertions, 4 deletions
diff --git a/actionpack/lib/action_controller/metal/rendering.rb b/actionpack/lib/action_controller/metal/rendering.rb
index 7b4f1f73a5..90f0ef0b1c 100644
--- a/actionpack/lib/action_controller/metal/rendering.rb
+++ b/actionpack/lib/action_controller/metal/rendering.rb
@@ -12,8 +12,6 @@ module ActionController
     def render(*args) #:nodoc:
       raise ::AbstractController::DoubleRenderError if self.response_body
       super
-      self.content_type ||= rendered_format.to_s
-      self.response_body
     end
 
     # Overwrite render_to_string because body can now be set to a rack body.
@@ -28,12 +26,21 @@ module ActionController
       end
     end
 
-    def render_to_body(*)
-      super || " "
+    def render_to_body(options = {})
+      super || if options[:text].present?
+        options[:text]
+      else
+        " "
+      end
     end
 
     private
 
+    def _process_format(format)
+      super
+      self.content_type ||= format.to_s
+    end
+
     # Normalize arguments by catching blocks and setting them on :update.
     def _normalize_args(action=nil, options={}, &blk) #:nodoc:
       options = super