`

visibility.js

Wrapper for the Page Visibility API

源码(https://github.com/ai/visibilityjs)

版本：
资源类型：

https://cdnjs.webstatic.cn/ajax/libs/visibility.js/1.2.4/visibility.fallback.min.js
https://cdnjs.webstatic.cn/ajax/libs/visibility.js/1.2.4/visibility.min.js