https://blog.wongcw.com/2021/03/01/%e5%be%ae%e8%bb%9fedge-canary%e7%8f%be%e5%9c%a8%e5%8f%af%e4%bb%a5%e8%ae%93%e7%94%a8%e6%88%b6%e4%b8%80%e6%ac%a1%e6%80%a7%e5%88%aa%e9%99%a4%e5%a4%9a%e5%80%8b%e5%af%86%e7%a2%bc/