Re: an idea

Volker Kroll (
Sun, 22 Sep 1996 14:19:13 +0200

Message-Id: <>
From: "Volker Kroll" <>
To: <>
Subject: Re: an idea
Date: Sun, 22 Sep 1996 14:19:13 +0200

Ryan <> wrote:=20
> I'm not a http/html guru, so please excuse me if something like this
> already exists, or has been proposed, or is just stupid...
> anyway, it seems netscape & mie always download images (or the whole
> document) even if it's unchanged..  couldn't a CRC type thing be used,
> where the client is told the CRC of the file and can use that to
> determine if it needs to GET it..
> ie, the server could insert a CRC tag=20
> <img src=3D"" crc=3Dff31cd5f >
> and if the browser has ANY file in cache with that CRC it can skip it
I think this might be a good idea. Many technical WWW sites uses the =
same graphics i.e. for ActiveX Controls or the button for "Netscape now" =
a you have to download it every time. But there might be the problem, =
that everyone has to use the new tag.

By now not everyone uses tags like alt in formatting images and so its =
hard to imagine that all the webauthors will use this new tag.