IE8 still caches my requests even with mathrandom

Question

TL; DR IE still caches my requests even with the Math.random () URL included.

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So, I added a math error to the end of my URL:

var MYKMLURL = 'http://' + host + 'data/pattern?key='+ Math.random();

I also added a math error to my param function:

window.setTimeout(RefreshPatternData, 1000, MYKMLLAYER);


           function RefreshPatternData(layer) {
               layer.loaded = false;
               layer.setVisibility(true);
               layer.refresh({ force: true, params: { 'key': Math.random()} });
               setTimeout(RefreshPatternData, 30000, MYKMLLAYER);
           }

So the request looks like http: // host / data / pattern? Key = 35678652545 , etc.

It changes every time a query is executed.

It works in Firefox, Chrome and Safari, etc. But IE8 still caches data and does not update its layer.

Any ideas as to why this could happen?

---

So I added:

<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
<meta http-equiv="Pragma" content="no-cache">
<meta http-equiv="Expires" content="0">

Still caching data. Any other ideas?

Answer 1

:

IE

Answer 2

IE AJAX. (, , AJAX-?) , IE HTTP-, AJAX.

URL-, : http://greenash.net.au/thoughts/2006/03/an-ie-ajax-gotcha-page-caching/

, HTTP, , :

Pragma: no-cache
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0

... -.