catching ActionController::InvalidAuthenticityToken

gistfile1.rb

class ApplicationController < ActionController::Base
  protect_from_forgery with: :exception
  rescue_from ActionController::InvalidAuthenticityToken, with: :show_errors
  
  before_filter { |c| User.current_user = c.current_user }
  
  ...
  private
  
    def show_errors
      logger.info "\n###\n Came to show errors method! flash: #{flash.inspect}\n###\n"
      flash.keep[:notice] = "She has some cookies for you"
      redirect_to home_url, alert: "Cookies are bad!"
    end