# File lib/unobtrusive_flash/controller_mixin.rb, line 7
    def prepare_unobtrusive_flash
      return unless flash.any?
      # TODO: replace configuration based on overriding methods with a conventional config block
      cookies[:flash] = {
        value: UnobtrusiveFlash::ControllerMixin.append_flash_to_cookie(cookies[:flash], flash, unobtrusive_flash_keys),
        domain: unobtrusive_flash_domain
      }
      flash.discard
    end