* Dieter Maurer (dieter@handshake.de) [001116 16:17]:
The Doctor What writes:
I was looking at the cacheability of my website in zope, and saw that the misc_/OFSP/*.gif images (as in the icon objects) are NOT cacheable because they don't return *any* date info. If they *at least* returned a Last Modified, they'd be cacheable. My browser (Netscape 4.74) happily cashes these images.
It is not clear, why a "Last Modified" header should be a precondition for caching.
I would expect it is only necessary, if you told your browser (or other cache) to verify freshness for each request. If the browser has a "Last Modified", it sends an "If-Modified-Since" header and get a 304 response, if not.
Ah, but you see, I have a caching proxy! Squid. My netscape cache's the images (ie, writes them to disk) but they are overwritten everytime. Since I connect via modem, I can watch them repopulate slowly. Even if Netscape does hold on to them without a caching proxy, we couldn't rely on that behavior. This problem makes 'icon' an undesireable object to use. Ciao! -- King: Chiswick, remind me to send flowers to the King of France in sympathy for the death of his son. Chiswick: The one you had murdered, My Lord King: Yes, that's the fellow. --Blackadder I The Doctor What: <fill in the blank> http://docwhat.gerf.org/ docwhat@gerf.org KF6VNC
