Javascript JS cookie有时没有设置_Javascript_Cookies

Javascript JS cookie有时没有设置

javascript cookies

Javascript JS cookie有时没有设置,javascript,cookies,Javascript,Cookies,如果在我的头部前部，我正在这样做： <head> <script> function setCookie(cname, cvalue, exdays) { var d = new Date(); d.setTime(d.getTime() + (exdays*24*60*60*1000)); var expires = "expires="+ d.toUTCString(); document.cookie =

如果在我的头部前部，我正在这样做：

<head>
  <script>
    function setCookie(cname, cvalue, exdays) {
      var d = new Date();
      d.setTime(d.getTime() + (exdays*24*60*60*1000));
      var expires = "expires="+ d.toUTCString();
      document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
    }

    setCookie('testCookie', 'testCookieValue', 1);

    function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
        (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
        m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
        })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

    ga('create', 'UA-XXXXXXX-X', 'auto');
    ga('send', 'pageview');
  </script>
  ..
</head>

有时testValue返回“testCookieValue”，有时返回“no Value”。什么原因会导致未设置cookie

何时调用setCookie？当cookie过期时，jango可能无法访问它

，稍后使用jango Im检查cookie是否存在

是否在服务器上，我不熟悉什么

jango

isIm设置cookie 1天。我会在1小时内检查它的值。对不起，我弄错了。应该是django。

if 'testCookie' in request.COOKIES:
    testValue = request.COOKIES['testCookie']  
else:
    testValue = 'no Value'