The Ajax.org Cloud9 Editor (Ace) for the Rails 3.1+ asset pipeline.

In your Gemfile, add:

gem 'ace-rails-ap'

Then execute bundle and restart your server.

Add in your application.js file:

//= require ace-rails-ap

To include a theme or mode, add them in your application.js file:

//= require ace/theme-sometheme
//= require ace/mode-somemode

Do not include Ace workers files in your application.js file. Then just use Ace like normal.

Ace editor will dynamically load in run-time the workers javascript files. ace-rails-ap play nice with rails asset pipeline by automatically configuring the precompilation of the workers files, and by setting-up Ace to load the fingerprinted worker files. You have nothing to do, it just works.

You may have done some customisation to allow ace-rails-ap to work in production, such as adding the worker files in assets.precompile of your application.rb and/or using ace.config.setModuleUrl function. You can remove those.

Also replace the previous javascript manifest instruction //= require ace/ace by the new //= require ace-rails-ap, and remove all workers from your javascript manifest.