Cache feature for WebResource.axd

Hi,

Is there any setting or config for Enable/Disable browser cache feature for webresource.axd response?

Unfortunatly there are lots of webresource requests in my website. some of the are cached by browser (in response header of them there is 'Expire Date') but there are webresource requests to images and javascript that they are not cached by the browser (there is no 'Expire Date' in response header).

What should I do to add 'Expire Date' in response header for WebResource.asx requests?

Is it related to IIS config or is done by asp.net handler?

Thank you for your feedback