js重写alert事件(避免alert弹框标题出现网址)

js代码: window.alert = function(msg, callback) { var div = document.createElement(div); div[removed] = <style type=\text/css\> + .nbaMask { position: fixed; z-index: 1000; top: 0; right: 0; left: 0; bottom: 0; background: rgba(0, 0, 0, 0.5); }