PWA Progressive Web App, Workbox

https://blog.techbridge.cc/2018/10/13/pwa-in-action/  PWA 實戰經驗分享

https://developers.google.com/web/fundamentals/codelabs/your-first-pwapp/?hl=zh-tw

你的首個 Progressive Web App

https://blog.techbridge.cc/2018/08/18/cors-issue/  原來 CORS 沒有我想像中的簡單