1 files changed, 6 insertions, 1 deletions
diff --git a/actionview/lib/action_view/rendering.rb b/actionview/lib/action_view/rendering.rb
index 7c17220d14..f96587c816 100644
--- a/actionview/lib/action_view/rendering.rb
+++ b/actionview/lib/action_view/rendering.rb
@@ -100,8 +100,13 @@ module ActionView
       end
 
       # Assign the rendered format to lookup context.
-      def _process_format(format) #:nodoc:
+      def _process_format(format, options = {}) #:nodoc:
         super
+
+        if options[:body]
+          self.no_content_type = true
+        end
+
         lookup_context.formats = [format.to_sym]
         lookup_context.rendered_format = lookup_context.formats.first
       end