errors_controller.rb

# app/controllers/errors_controller.rb

# do not forget to delete public/{404, 422, 500}.html
# rm public/{404, 422, 500}.html
class ErrorsController < ApplicationController

  def not_found
    render status: 404
  end

  def unacceptable
    render status: 422
  end

  def internal_server_error
    render status: 500
  end

end