config.ru

# This file is used by Rack-based servers to start the application.

require ::File.expand_path('../config/environment',  __FILE__)
run Rails.application

require 'rack/cors'
use Rack::Cors do
  allow do
    origins '*'
    resource '*',
      :headers => :any,
      :methods => [:get, :post, :delete, :put, :options],
      :credentials => true,
      :max_age => 0,
      :expose => :location
  end
end