clean_fxml_response.rb

# flash / restfulx doesn't like 422 error codes. if it's fxml, return 200s instead of 422s

require 'rack/utils'

class CleanFxmlResponseMiddleware
  def initialize(app)
    @app = app
  end

  def call(env)
    status, headers, body = @app.call(env)
    is_fxml = env["action_controller.rescue.request"].parameters["format"] == "fxml"
    status = 200 if is_fxml && status==422
    [status, headers, body]
  end
end

ActionController::Dispatcher.middleware.use CleanFxmlResponseMiddleware