Problem reloading datas from server with Internet explorer

Gantt
#1

I am testing dhtmlxGantt with this server configuration:
Apache Version: 2.4.4
PHP Version: 5.4.16
MySQL Version: 5.6.12
On client side, I have IE8, IE10 and Firefox.
When I reload my page after some changes or by using F5, the datas updated from the server are not loaded with Internet Explorer. I have got the datas from my first load of the page of the day.
I have tried this function called with a button:

function reinit(){
	gantt.clearAll();
	gantt.load("../common/connector.php");
}

This doesn’t work. With firefox, I don’t have this kind of problem.
Is it a problem from IE or something incompatible with IE?

#2

It possible that IE caches the data.
You can fix situation by correctly configuring server side caching headers, or just change the data loading code in the next way

function reinit(){ gantt.clearAll(); gantt.load("../common/connector.php?uid="+(new Date()).valueOf()); }