non-strict leaks

gistfile1.txt

//'use strict';
var n = function () {
    console.log(new Error().stack)
    console.log(arguments)
    console.log(arguments.callee)
    console.log(arguments.callee.caller)
    console.log(Object.getOwnPropertyNames(arguments.callee.caller))
    console.log(arguments.callee.caller.prototype)
}

req.on('end', n)