provision.enabled
How to properly leave a chat group
。关于这个话题，Line官方版本下载提供了深入分析
Same-privilege return，这一点在WPS下载最新地址中也有详细论述
writable: false means no code can reassign window.Audio to a different value. configurable: false means no code can even call Object.defineProperty again to change those settings. If fermaw’s initialisation code tried to restore the original Audio constructor (a perfectly sensible defensive move) the browser would either fail or throw a TypeError. The hook was permanent for the lifetime of the page.