屏蔽页面JS错误,拦截页面JS错误的代码,js禁止跳出错误提示 window.onerror = function (sMessage, sUrl, sLine) { //alert("An error occurred:\n" + sMessage + "\nURL: " + sUrl + "\nLine Number: " + sLine); return true; // 如果return false;则js异常一样会出现 }