gistfile1.rb

$ git diff
diff --git a/lib/sprockets_on_heroku.rb b/lib/sprockets_on_heroku.rb
index 781b9cf..77b3153 100644
--- a/lib/sprockets_on_heroku.rb
+++ b/lib/sprockets_on_heroku.rb
@@ -44,7 +44,9 @@ class SprocketsOnHeroku
   def initialize_sprockets
     secretary.concatenation.save_to(javascript_location_on_heroku)
     minify
-    self.class.original_sprockets_location = '/sprockets.js' 
+    if RAILS_ENV == 'production'
+      self.class.original_sprockets_location = '/sprockets.js' 
+    end
   end
 
   def minify