我的Facebook Messenger有时不显示 。我给它提供了一个唯一的user_ref，所以不是这种情况，但是我不确定为什么在某些情况下，它会像这样隐藏在控制台中：
{event: "rendered", is_after_optin: false, user_ref: "1558561309805-26670", ref: null, pluginID: undefined}
Plugin was rendered
messenger_checkbox event
{event: "checkbox", state: "unchecked", user_ref: "155856130986605-26670", ref: null, pluginID: undefined}
Checkbox state: unchecked
messenger_checkbox event
{event: "hidden", user_ref: "1558561309805-26670", ref: null, pluginID: undefined}
Plugin was hidden