COSCUP X Mozilla Hands on - Local Storage Resource gaia slide General 把 images 放到 style 放到有助 css image minimizer 除了 load, unload, 也有 visibility change, 像是視窗跑到下層 CSP: content security policy. inline code, eval considered harmful <script defer src="xx.js"> 會平行下載，依序執行 localStorage, IndexedDB