[7172] in www-talk@info.cern.ch
Re: Automatic Page Updates
daemon@ATHENA.MIT.EDU (Christian Mogensen)
Tue Jan 10 14:46:30 1995
Date: Tue, 10 Jan 1995 20:45:15 +0100
Errors-To: listmaster@www0.cern.ch
Reply-To: mogens@CS.Stanford.EDU
From: Christian Mogensen <mogens@CS.Stanford.EDU>
To: Multiple recipients of list <www-talk@www0.cern.ch>
>Is there any way in HTTP for a Server to automatically update a page
>without requiring the user of the client to click on anything?
Currently no. HTTP is connectionless, and that makes it hard to
do things after a transaction is completed.
>An example use of this would be if a Client requests a stock price
>page and keeps the page displayed. Now suppose the stock price
>changes. Is there a way within HTTP for the Server to update the page
>automatically without requiring the user to click on the reload option?
Another way to do this is to provide a stock-ticker application that
is initialized by the web client when it receives application/x-stock-ticker
data. The browser forks off the special viewer which opens a separate
communication channel to the server.
The previously noted use of Expires: xxx header is interesting - I don't
think it will work in the described manner until after a few revisions
of browser software have passed...
Christian "web-head"
