How to force data not to load from cache?

[luke14free]

Goodmorning, I am doing a WebSite with ajax and other things...
I have got a problem, IE has a bug that doesnt recognize the ajax command that loads xml files not from cache {UseCache:false } (that Firefox recognizes without problems...).
I tried many others way but i wasn't able to disable caching...
Any Ideas?
Thanks,

[epots9]

try this

[HTML]<META HTTP-EQUIV="Pragma" CONTENT="no-cache">[/HTML]
or
[PHP]header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header("Expires : Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
[/PHP]
place that in your head tag

[ak1dnar]

Once Your Question Has Been Answered
When you have gotten your answer, please post back with something like "Thanks, that answers my question" so the thread can be closed and people who are looking for unanswered questions can find them more easily.

[luke14free]

Sorry but I tried that too...no way the code doesnt work...old data is loaded

[epots9]

did u clear your cache before u applied the new lines of code? cuz its from this point one where it doesn't cache but if it was there before it stays there until its expired.

[luke14free]

<script type="text/javascript">
<!--
var d = new Date()
var ds1 = new Spry.Data.XMLDataSet("data.xml?cacheBuster=" + d.getMilliseconds(), "events/event",{useCache:false});
//-->
</script>

thanks, solved...

[bucabay]

<script type="text/javascript">
<!--
var d = new Date()
var ds1 = new Spry.Data.XMLDataSet("data.xml?cacheBuster=" + d.getMilliseconds(), "events/event",{useCache:false});
//-->
</script>

thanks, solved...

I know this is considered solved, but I want to mention that:

These cache problems are because you're using HTTP GET Requests. If you don't want a your XMLHTTPRequests to be cached, use a HTTP POST. Thats what it's for...

see: http://fijiwebdesign.com/content/view/92/77/

If you're really worried about it caching so much, then use unique URIs for your HTTP POST.

eg: pseudo code:

XHR.post('example?no-cache='+(new Date()).getMilliseconds()).send(data);

[ak1dnar]

Another way of omit the cache is sending unique requests to to the server side scripts.

for a example:

var url="server_side_page.php?some_data="+value_goes_here;
url=url+"&request="+Math.random();

then send it to the server side for processing.