ISA caching with no cache-related info in response header
- by Mike M. Lin
From the documentation, I can't figure out what criteria an ISA server uses to figure out if a cached file is valid when no cache-related info is in the response header. Let's say I got this header in my response on Thu, 13 Jan 2011 18:43:35 GMT:
HTTP/1.1 200 OK
Date: Thu, 13 Jan 2011 18:43:35 GMT
Server: Apache/2.2.3 (Red Hat)
Content-Language: en
X-Powered-By: Servlet/2.5 JSP/2.1
Keep-Alive: timeout=15
Connection: Keep-Alive
Transfer-Encoding: chunked
Content-Type: text/html; charset=ISO-8859-1
There's no cache directive, no last-modified field, no expires field. How will the ISA server decide for how long to cache this response?
