"While the stream identified by the promised stream ID is still open" - meaning that as long as the client has asked for it before the server has finished sending it? That's a fairly small amount of time, particularly if the resource is very small, but sounds like a good starting point.
If nothing else, that's a clearer standard that a proxy can use in the absence of knowledge of the client's request groupings.
-----Original Message-----
From: Martin Thomson [mailto:martin.thomson@gmail.com]
Sent: Friday, August 22, 2014 10:18 AM
To: Mark Nottingham
Cc: Patrick McManus; Mike Bishop; William Chow; HTTP Working Group
Subject: Re: Push and Caching
On 21 August 2014 18:29, Mark Nottingham <mnot@mnot.net> wrote:
> Received on Friday, 22 August 2014 17:30:45 UTC