An creates a completely separate browsing context with its own window object, its own document, and most importantly;its own prototype chain. A function hooked on HTMLMediaElement.prototype in the parent window is not the same object as HTMLMediaElement.prototype in the iframe’s window. They’re entirely separate objects. If fermaw’s audio element lived inside an iframe, my prototype hook in the parent window would never fire.
18 February 2026ShareSave
，推荐阅读搜狗输入法2026获取更多信息
// Synchronous transforms，推荐阅读搜狗输入法下载获取更多信息
在这一基础上，2026年华住还将加速轻资产模式发展，进一步提高管理加盟及特许经营业务（M&F）的收入占比，降低对自有资产的依赖，从而提升经营杠杆效率与抗周期能力。。业内人士推荐safew官方版本下载作为进阶阅读