1 files changed, 9 insertions, 0 deletions
diff --git a/railties/lib/initializer.rb b/railties/lib/initializer.rb
index 18af73fc89..b5bf9266f5 100644
--- a/railties/lib/initializer.rb
+++ b/railties/lib/initializer.rb
@@ -135,6 +135,9 @@ module Rails
 
       load_application_initializers
 
+      # Prepare dispatcher callbacks and run 'prepare' callbacks
+      prepare_dispatcher
+
       # the framework is now fully initialized
       after_initialize
 
@@ -442,6 +445,12 @@ module Rails
       end
     end
 
+    def prepare_dispatcher
+      require 'dispatcher' unless defined?(::Dispatcher)
+      Dispatcher.define_dispatcher_callbacks(configuration.cache_classes)
+      Dispatcher.new(RAILS_DEFAULT_LOGGER).send :run_callbacks, :prepare_dispatch
+    end
+
   end
 
   # The Configuration class holds all the parameters for the Initializer and