1 files changed, 6 insertions, 0 deletions
diff --git a/actionpack/lib/sprockets/railtie.rb b/actionpack/lib/sprockets/railtie.rb
index c21bf57935..680cb980ff 100644
--- a/actionpack/lib/sprockets/railtie.rb
+++ b/actionpack/lib/sprockets/railtie.rb
@@ -26,6 +26,12 @@ module Sprockets
         end
       end
 
+      if config.assets.manifest
+        if File.exist?(path = File.join(Rails.public_path, config.assets.prefix, "manifest.yml"))
+          config.assets.digests = YAML.load_file(path)
+        end
+      end
+
       ActiveSupport.on_load(:action_view) do
         include ::Sprockets::Helpers::RailsHelper