AJAX problem in IE9?

Question

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

Answer 1

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

Either set the correct caching headers on the server

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

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

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