File type problem

I have squid sitting between my browser and a netsape commerce server.

I am having a problem getting squid to cache my custom file types
dynamically.

I have set up a file type which has a file extension of .mat

I am unable to get squid to cache files with this extension even though
it is a
static file.

When files of this type are returned to the browser they are passed with

the following http header info. The content type is HTML

"Date: Mon, 01 Jan 1997 14:00:00 GMT";
"Last-Modified: Mon, 01 Jan 1997 14:00:00 GMT";
"Expires: Mon, 01 Sep 1997 12:00:00 GMT";

Is there something I need to configure to get this to work.

Hope this is not too basic a question

Ciaran Loughlin
Sapient Corp.
clough@sapient.com
617-374-0375
http://www.sapient.com
Received on Thu Aug 21 1997 - 12:59:04 MDT