Re: #428 Accept-Language ordering for identical qvalues
Julian Reschke <julian.reschke@gmx.de> Thu, 24 January 2013 09:52 UTC
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Date: Thu, 24 Jan 2013 10:50:33 +0100
From: Julian Reschke <julian.reschke@gmx.de>
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Subject: Re: #428 Accept-Language ordering for identical qvalues
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On 2013-01-24 09:54, Amos Jeffries wrote: > On 24/01/2013 9:26 p.m., Julian Reschke wrote: >> On 2013-01-24 02:17, Mark Nottingham wrote: >>> So, does anyone have an issue with making ordering significant when >>> there's no qvalue for *all* headers that use qvalues? >>> .. >> >> I still do, and I'd prefer we go back to what the spec has been saying >> for well over a decade. >> >> What *real* problem are we solving with this change that justifies >> making current implementations broken? > > Problem 1) a lot of agents (~57% by unique U-A string) are using > q-values to specify ordering where the spec says "unordered". Not sure what you're trying to say here. If they send q-values there is no doubt about the semantics, right? Also, counting unique UA strings generates a totally distorted statistic. > Problem 2) a majority of the remaining agents appear to be treating the > field-value as an ordered list of preferences even without q-values. Recipients, I assume? How is that a problem? They choose one plausible interpretation where the spec doesn't define one. > Problem 3) ~1% of agents are incorectly implementing q-values. (see my > earlier post responding to your request for examples). Are these agents widely used? Can they be fixed? Did you report bugs against them? > Problem 4) q-values being mandatory when preference order is wanted adds > complexity on both ends of the transaction, causing unnecessary CPU > burden on the recipient. Misunderstandings and a host of needless > mistakes by end-users and developers alike. (again see my earlier post > for examples). That is true, but we can't remove q values at this point. Note we are discussing HTTP/1.1. > Problem 5) On the Accept-Language header the bandwidth required to > transmit q-values inflates the header size by at least 55% (ISO code: > 2-5 bytes, q-v component: 6 bytes). For that field value, yes. Best regards, Julian
- #428 Accept-Language ordering for identical qvalu… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Martin J. Dürst
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Martin J. Dürst
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Nicholas Shanks
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Nico Williams
- Re: #428 Accept-Language ordering for identical q… Adrien W. de Croy
- Re: #428 Accept-Language ordering for identical q… Adrien W. de Croy
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… James M Snell
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Adrien W. de Croy
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Nicholas Shanks
- Re: #428 Accept-Language ordering for identical q… James M Snell
- Re: #428 Accept-Language ordering for identical q… Adrien W. de Croy
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Adrien W. de Croy
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Adrien W. de Croy
- Re: #428 Accept-Language ordering for identical q… Nicholas Shanks
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Amos Jeffries
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Martin J. Dürst
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Julian Reschke
- Re: #428 Accept-Language ordering for identical q… Martin J. Dürst
- Re: #428 Accept-Language ordering for identical q… Mark Nottingham
- Re: #428 Accept-Language ordering for identical q… Eric J. Bowman
- Re: #428 Accept-Language ordering for identical q… James M Snell
- Re: #428 Accept-Language ordering for identical q… Martin Thomson
- Re: #428 Accept-Language ordering for identical q… Eric J. Bowman
- Re: #428 Accept-Language ordering for identical q… Roy T. Fielding
- Re: #428 Accept-Language ordering for identical q… Eric J. Bowman
- Re: #428 Accept-Language ordering for identical q… Nicholas Shanks
- Re: #428 Accept-Language ordering for identical q… Julian Reschke