[5538] in www-talk@info.cern.ch

home help back first fref pref prev next nref lref last post

Re: holding connections open: a modest proposal

daemon@ATHENA.MIT.EDU (Steven D. Majewski)
Mon Sep 12 17:43:50 1994

Date: Mon, 12 Sep 1994 23:08:13 +0200
Errors-To: listmaster@www0.cern.ch
Errors-To: listmaster@www0.cern.ch
Reply-To: sdm7g@virginia.edu
From: "Steven D. Majewski" <sdm7g@virginia.edu>
To: Multiple recipients of list <www-talk@www0.cern.ch>

On Mon, 12 Sep 1994, John Franks wrote:
> 
> Another proposal which has been discussed is to use MIME multi-part
> document format to make an HTML document with 20 images into a 
> single document.  The problem with this is that it represents 
> substantial effort on the part of browser and server writers and
> is, for that reason, not likely to get implemented.
> 

However, this approach might have other benefits - 
Allowing Content-Type: multipart to be returned could allow:

A way to generically inline images and other objects without extending
HTML with more <IMG> like tags for other types. If the type is not 
understood, a marker should be displayed by the browser. 
( Problem: how not to send things that the browser doesn't understand. 
  If each part has to be parsed and type-checked, this might eliminate
  of the advantage of using multipart. ) 
[ With browser support, this could allow sending audio parts 1,2,3,4, 
etc. and start playing part 1 while the rest are being transferred, 
automatically playing them in sequence. ] 

text/html and text/plain could be alternated, allowing a simple 
way of inserting text without having to filter and escape characters 
first. 

Allow multipart/parallel audio|image and video. Semantics are that
they are intended to be presented together. ( within the "best effort"
of the client. ) 

[ Functionality of multipart/alternative is already in the client-server
  negotiation, so support would be redundant. ] 


All of which would, I think, take minimal effort on the server to
implement, but WOULD take a substantial effort for clients to support. 



- Steve Majewski       (804-982-0831)      <sdm7g@Virginia.EDU>
- UVA Department of Molecular Physiology and Biological Physics


home help back first fref pref prev next nref lref last post