Swiki: no-cache and <pre>

Randal L. Schwartz merlyn at stonehenge.com
Fri Mar 3 15:41:06 UTC 2000

>>>>> "Bert" == Bert Freudenberg <bert at isgnw.CS.Uni-Magdeburg.De> writes:

Bert> Actually, there was a discussion about a year ago. Since then, the swiki
Bert> sends pages with these three header lines:
Bert> 	Expires: 0
Bert> 	Pragma: no-cache
Bert> 	Cache-Control: no cache

I'd remove "Pragma: no-cache".  It's just voodoo programing, and has
no effect except to perpetuate the myth that it *does* something.  And
the parameter of "Expires:" I believe has to be an actual date/time,
not just a 0.  And, to hit 3-for-3 here, I dunno if it's a typo, but
you need "no-cache" on that "Cache-control". :)

Bert> In PWSSwiki this was only done for "edit" requests, because it is fatal
Bert> if you edit an old version. In ComSwiki, these three lines are always
Bert> sent. Hopefully, the next ComSwiki version will support a real
Bert> "Last-modified" header as well as the "HEAD" method.

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