https://blog.wongcw.com/2021/10/02/safari-15-1-beta%e7%99%bc%e4%bd%88%ef%bc%9a%e4%bf%ae%e5%be%a9bug%e5%92%8c%e5%84%aa%e5%8c%96%e6%80%a7%e8%83%bd%e7%82%ba%e4%b8%bb/