In 2020, an "opt-out" donation system was introduced in England in 2020, five years after being implemented in Wales.
The reason is always the same: the content and the key that decrypts it are both present on the client’s machine. The user’s hardware decrypts the content to display it. The user’s hardware is, definitionally, something the user controls. Any sufficiently motivated person with the right tools can intercept the decrypted output.，更多细节参见下载安装 谷歌浏览器 开启极速安全的 上网之旅。
'Definitely busier'，这一点在Line官方版本下载中也有详细论述
When we run timeTravel(checkoutFlow, traceLog), it will actually exercise our checkout workflow, and produce the following output. With that, we’ve successfully executed a production execution trace locally, all without touching any database or external service:，详情可参考51吃瓜