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Avoid the cache effect for Ajax calls in Internet Explorer(IE) browser

If you use a GET method to send an asynchronous request to your server side code, Internet Explorer will cache locally your GET request, so obviously you won't get the latest result in your response. Firefox and Chrome doesn't seem to have this issue.
To resolve or handle cache effect issue for Ajax call:
·         Either use POST method instead of GET
·         Or add some random value to your GET request
so instead of using like this from client side,
var getUrl = 'GetUser.aspx?username=sandeep'
use this:
var getUrl = 'GetUser.aspx?username=sandeep'  + '&rdm=' + new Date().getTime();

This will force IE to show a fresh version of your request all the time.

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