小程序备用网页有什么用，怎么设置公众号小程序备用网页url-小程序开发经验分享
Q&A
设置公众号菜单的时候，设置好小程序路径，备用网页是灰色的，无法编辑。
设置点击【从公众号图文消息中选择】，如果还没发布过公众号推文，可以选择素材库中的文章，素材库也没有文章的就新建，勾选就设置好备用网页了。
备用网页存在的意义就是，遇到小程序无法跳转的情况，系统自动跳转到设置的备用网页链接。支持跳转到已发送的内容，素材库、历史消息和页面模板。
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