微信你日志浏览器、谷歌浏览器自动跳转到百度后不能回退到跳转前页面,怎样才能实现回退到原有页面。(倒计时期间不点击浏览器)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<button><span id="n">3</span>秒后跳转新的页面</button>
<script type="text/javaScript">
var num=3;
var id = setInterval(jump,1000);
var n = document.getElementById("n");
function jump(){
num -- ;
n.innerHTML = num;
if(num==0){
clearInterval(id);
window.location.href="http://www.baidu.com";
}
}
</script>
</body>
</html>