版本：1.0.12
- https://cdn.bootcdn.net/ajax/libs/push.js/1.0.12/push.js
- https://cdn.bootcdn.net/ajax/libs/push.js/1.0.12/push.min.js
- https://cdn.bootcdn.net/ajax/libs/push.js/1.0.12/serviceWorker.min.js
A compact, cross-browser solution for Javascript desktop notifications