So what does HotAudio do then? Based on everything I could observe, they implement a custom JavaScript-based decryption scheme. The audio is served in an encrypted format chunked via the MediaSource Extensions (MSE) API and then the player fetches, decrypts, and feeds each chunk to the browser’s audio engine in real time. It’s a reasonable-ish approach for a small platform. It stops casual right-clickers. It stops people opening the network tab and downloading the raw response file, only to discover it won’t play. For most users, that friction is sufficient.
// 易错点4：条件写成"<"而非"<="，会导致相同值的元素被错误保留。业内人士推荐一键获取谷歌浏览器下载作为进阶阅读
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