在IE9 AJAX的问题？ [英] AJAX problem in IE9?

问题描述

我已经做了AJAX的聊天室;和它的作品在Chrome和FF，但当然，不是在IE浏览器。这是我的code：

I have made an AJAX chatroom; and it works in chrome and FF, but of course, not in IE. Here's my code:

<script language="javascript" type="text/javascript">
<!-- 
//Browser Support Code
function ajaxFunction(){
    var ajaxRequest; 
    try {
      ajaxRequest = new XMLHttpRequest();
    } catch (e) {
      try {
        ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
         try {
           ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
         } catch (e){
           alert("Your browser broke!");
           return false;
     }
  }
    }

    ajaxRequest.onreadystatechange = function(){
      if(ajaxRequest.readyState == 4) {
        var ajaxDisplay = document.getElementById('ajaxDiv');
        ajaxDisplay.innerHTML = ajaxRequest.responseText;
      }
    }

    ajaxRequest.open("GET", "pull.php", true);
    ajaxRequest.send(null);  
}

setInterval( "ajaxFunction()", 1000 );

//-->
</script>

的结果不会显示。我有一个名为AjaxDiv格有没有什么帮助任何人。我究竟做错了什么？这是一个错误？

The result never displays. I have a div named AjaxDiv if that helps anyone. What am I doing wrong? Is this a bug?

推荐答案

每次大概唬弄了缓存副本你提出要求。

Probably yanking out a cached copy every time you make a request.

无论是设置正确的缓存头在服务器上

Either set the correct caching headers on the server

header( 'Cache-Control: no-store, no-cache, must-revalidate' );
header( 'Pragma: no-cache' ); 

或追加一个查询字符串，如GET​​请求以下

Or append a query string to the get request like the following

ajaxRequest.open("GET", "pull.php?ts=" + new Date().getTime(), true);

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