https://blog.wongcw.com/2021/04/16/%e7%9f%bd%e8%b0%b7clipper%e5%a4%9a%e5%90%88%e4%b8%80%e4%ba%a4%e9%80%9a%e5%8d%a1%e7%b5%82%e6%96%bc%e6%94%af%e6%8c%81apple-pay%e4%ba%86/