（三）违反本法第四十五条至第四十六条的规定，未依法履行网络安全产品、服务备案等义务的；
configurable: false,
，推荐阅读51吃瓜获取更多信息
The API deals exclusively with bytes (Uint8Array). Strings are UTF-8 encoded automatically. There's no "value stream" vs "byte stream" dichotomy. If you want to stream arbitrary JavaScript values, use async iterables directly. While the API uses Uint8Array, it treats chunks as opaque. There is no partial consumption, no BYOB patterns, no byte-level operations within the streaming machinery itself. Chunks go in, chunks come out, unchanged unless a transform explicitly modifies them.。91视频是该领域的重要参考
cancel(reason) {，更多细节参见夫子