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Re: study completed

From: Gerald W. Edgar <gerald@blegga.freerange.com>
Date: Thu, 26 Sep 1996 12:45:11 -0700 (PDT)
To: tai@hplms26.hpl.hp.com
Cc: www-talk@w3.org
Message-Id: <Pine.GSO.3.95.960926120402.16529B-100000@blegga.freerange.com>


On Thu, 26 Sep 1996, Tai Jin wrote:

> I hate to followup on my own message, but...
> 
> > In either case, there's the additional latency generated by the
> > request to the server.  Your method has the advantage that the page
> > can be displayed before getting a response from the server.  However,
> 
> As someone else had mentioned, there's also the overhead of server
> processing which is nontrivial, especially when using the CGI
> mechanism.

I think that the overhead varies by operating system, I have had few CGI
task initiation overhead problems on UNIX systems. On NT this may be a
different story. Blanket statments may not fit all cases.

> 
> This brings up another issue: why can't I put in some kind of meta
> data for an inline object which specifies cache parameters?  I realize
> that caching attributes have nothing to do with markup, but having to
> kludge this type of behavior with CGI is not acceptable.  It would be
> trivial to add these attributes in HTML.  It's already there in the
> form of the META tag.  Perhaps it can be extended with an attribute to
> refer to specific named inline objects.


There are a number of parameters that are available for dynamicly produced
pages. One of these is the "Expires: " header that can define to the
browser when the page will not be good any longer. The other is the 
META NO-CACHE parameter the exact tag is-
<head>
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
</head>
but keep in mind that his does not work for all browsers!


Gerald Edgar
Development Lead
Free Range Media
creaters of Prentice-Hall Direct, Baywatch, Alan Guttmacher Institute,
Resort Condominiums International, Apartment Guides, portions of the
Microsoft site, FutureShop and many other web sites on UNIX and NT
platforms
Received on Thursday, 26 September 1996 15:46:59 GMT

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