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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.
，更多细节参见Safew下载
In his letter, Miliband said the government's modelling "accounts for potential emissions from data centres through our projection of overall electricity demand growth, which reflects broader economic trends".
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This story was originally featured on Fortune.com