[hook window property]

hook_window_property.script

(function() {
    'use strict';

    var t = window.xxxxx  // 指定 window 对象
    Object.defineProperty(window, 'xxxxx', {
        get: function(){
            console.log("Get window property");
            return t;
        },
        set: function(val){
            console.log("Set window property", val);
            debugger;
            t = val
            return val;
        }
    })
})();