[11293] in www-talk@info.cern.ch
Refresh:
daemon@ATHENA.MIT.EDU (Fabian Wein)
Thu Apr 29 10:03:39 1999
Date: Thu, 29 Apr 1999 16:02:33 +0100
From: Fabian Wein <wein@iis.fhg.de>
To: www-talk@w3.org
Resent-From: www-talk@w3.org
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Hi,
I do not understand <META HTTP-EQUIV="Refresh" CONTENT=5>.
Internet Explorer:
does a if-not-modfied GET for the HTML page including embedded
images but renders the whole page even if there is definetly
nothing else than a 304 Not Modified coming from the server.
Netscape:
does also a if-not-modified GET but is not interested in
embedded images, even if the HTML pages is altered (touch).
Also renders the whole page new every time.
Opera:
Asks the server who sends a 304 back and then the page is not
rendered - fine.
What I also don't understand is, that there is in HTTP 1.0 and 1.1
no Refresh:! It seems there was a security discussion in 95 but
I didn't find any result.
So, when Expire: cannot be used, is there any way to force the
browser (NS/IE) to check if there were any updates of the data w/o
rendering the page when there is no new data available?
Can this be done via multipart messages or has anyone experience
with Conection: Keep-Alive and some tricks?
Thanks a lot, Fabian
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