Dirk Taggesell wrote:
Hi folks,
there's a web-server, that sends no info about caching or expiry of
documents. That is the http header received while fetching a flash applet:
HTTP/1.x 200 OK
Date: Fri, 09 Nov 2007 15:26:46 GMT
Server: Jetty/5.1.x (Mac OS X/10.4.9 i386 java/1.5.0_07
Content-Type: application/x-shockwave-flash
Content-Length: 60749
Last-Modified: Wed, 07 Nov 2007 14:18:36 GMT
Accept-Ranges: bytes
Does this violate the http standard? Is a web-server required to send
infos about document lifetime along with a document?
Thanks for helping me.
Max-Age and Expires are optional headers. Squid uses a percentage of
the objects age (calculated from the Last-Modified date) to determine
object freshness.
See
http://wiki.squid-cache.org/SquidFaq/InnerWorkings#head-42f0582290981fb15dd7d7edd3d42ae8c52fa317
for more details.
Chris
