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.
Жители Санкт-Петербурга устроили «крысогон»17:52，推荐阅读Line官方版本下载获取更多信息
}After processing the request and updating the inventory in the database, the JSON response body returned to the client includes all the results of the operation.，更多细节参见safew官方下载
PrincetonEngineers，这一点在谷歌浏览器【最新下载地址】中也有详细论述