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Re: [hybi] WS ABNF

Dave Cridland <dave@cridland.net> Wed, 17 February 2010 09:02 UTC

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Date: Wed, 17 Feb 2010 09:03:17 +0000
From: Dave Cridland <dave@cridland.net>
To: "Thomson, Martin" <Martin.Thomson@andrew.com>, Server-Initiated HTTP <hybi@ietf.org>
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Subject: Re: [hybi] WS ABNF
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On Tue Feb 16 23:45:29 2010, Thomson, Martin wrote:
> > Am I alone in seeing two design errors here?
> 
> Nope.  But as Greg points out, there's been resistance to re-design.
> 
> 
The fundamental design - you connect back to the HTTP server and end  
up with a very bare-bones message-passing protocol to an application  
named (or addressed, if you prefer) in URI style - seems very sound.  
Certainly preferable to what we have now (BOSH, Comet, etc), whilst  
remaining within the known security model of the web, with  
single-origin etc.

Some of the details of this design, however - framing, and the  
apparently brittle nature of the initial negotiation - seem likely to  
cause long-term problems. These details need changing *NOW*, to avoid  
early implementors being left with a legacy implementation.

Dave.
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