This is a well-known browser security technique. In JavaScript, calling .toString() on a native browser function returns "function appendBuffer() { [native code] }". Calling it on a JavaScript function returns the actual source code. So if your appendBuffer has been monkey-patched, .toString() will betray you; it’ll return the attacker’s JavaScript source instead of the expected native code string.
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，这一点在Line官方版本下载中也有详细论述
2026-02-26 19:00:00
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开发者将从构建完整 App 转向构建可被 Agent 调用的能力模块，生态将从「应用」走向「功能」；