ruby-on-rails – ActionCable：从前端手动关闭连接

Finished "/cable/" [WebSocket] for 127.0.0.1 at 2016-10-29 16:55:49 +0200

但是当我打电话的时候

App.cable.subscriptions.remove(App.subscription)

要么

App.subscription.unsubscribe()

正在调用CommunityChannel中的方法“unsubscribed”,但电缆仍然存在,我仍然可以在我的函数“print_socket”中打印它

如何手动关闭连接？

module ApplicationCable
  class Connection < ActionCable::Connection::Base

    identified_by :current_user

    def connect
      self.current_user = find_verified_user
    end

    protected

    def find_verified_user
      if current_user = User.find_by(id: cookies.signed[:user_id])
        current_user
      else
        reject_unauthorized_connection
      end
    end

  end
end