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，更多细节参见91视频
Что думаешь? Оцени!，这一点在雷电模拟器官方版本下载中也有详细论述
Prototype pollution defense: One test patches Object.prototype.then to intercept promise resolutions, then verifies that pipeTo() and tee() operations don't leak internal values through the prototype chain. This tests a security property that only exists because the spec's promise-heavy internals create an attack surface.