1 files changed, 11 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/routing/inspector.rb b/actionpack/lib/action_dispatch/routing/inspector.rb
index 48c10a7d4c..aa507f59c7 100644
--- a/actionpack/lib/action_dispatch/routing/inspector.rb
+++ b/actionpack/lib/action_dispatch/routing/inspector.rb
@@ -45,12 +45,22 @@ module ActionDispatch
       end
 
       def internal?
-        controller.to_s =~ %r{\Arails/(info|mailers|welcome)}
+        internal_controller? || internal_asset?
       end
 
       def engine?
         rack_app.respond_to?(:routes)
       end
+
+      private
+        def internal_controller?
+          controller.to_s =~ %r{\arails/(info|mailers|welcome)}
+        end
+
+        def internal_asset?
+          Rails.application.config.respond_to?(:assets) &&
+            path =~ %r{\a#{Rails.application.config.assets.prefix}\z}
+        end
     end
 
     ##