从A页面跳转到B页面，从B页面按浏览器自带按钮返回到A页面并且刷新页面--手机操作浏览器自带返回并自带刷新

 1 <html>
 2 <head>
 3 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
 4 <meta content="width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no" name="viewport">
 5 <meta http-equiv="Pragma" content="no-cache"> 
 6 <meta  http-equiv="Cache-Control" content="no-cache"> 
 7 <meta  http-equiv="Expires" content="0">
 8 <script src="../jquery.min.js"></script>
 9 <script src="../jquery.cookie.min.js"></script>
10 <script>
11     $first=$.cookie('first_vist');
12     if(!$first||$first=='null'||$first==null){
13        $.cookie('first_vist','1',{ expires: 7 });
14     }else{
15        $.cookie('first_vist',null);
16        location.reload(true);
17     }
18 </script>
19 </head>