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Re: estimated Content-Length with chunked encoding

From: Adrien de Croy <adrien@qbik.com>
Date: Tue, 21 Oct 2008 15:44:52 +1300
Message-ID: <48FD4224.5080705@qbik.com>
To: "William A. Rowe, Jr." <wrowe@rowe-clan.net>
CC: HTTP Working Group <ietf-http-wg@w3.org>

William A. Rowe, Jr. wrote:
> Adrien de Croy wrote:
>> for this point, you want my draft ID on progress notifications :)
>> http://tools.ietf.org/id/draft-decroy-http-progress-04.txt
> Although I agree with a desire to keep the request lightweight, so only
> to pass on the information when desired, the chunked scheme is nearly
> always used for progressive data.  If you amended the draft to use an
> attribute extention on the chunk header, it might be very interesting.

could be interesting.  My original use case was to prevent user timeouts 
due to lack of perceived progress, so all the 1xx responses would be 
sent prior to any data (chunked or otherwise)... but I can see some good 
potential for being able to write to the UI of a UA during chunked data 
download as well - like a multiplexed data stream.

Although I thought chunk extension headers could only occur on the final 
chunk?  Or are they different to attribute extensions... bit rusty on 

Adrien de Croy - WinGate Proxy Server - http://www.wingate.com
Received on Tuesday, 21 October 2008 02:43:16 UTC

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