- From: Ilya Grigorik <ilya@igvita.com>
- Date: Wed, 14 Nov 2012 10:05:16 +0100
- To: "Ludin, Stephen" <sludin@akamai.com>
- Cc: John Kemp <john@jkemp.net>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
- Message-ID: <CAKRe7JEWCBocLKcnXZGSus9KPctznAqX-ssdkci_KF25KFJQew@mail.gmail.com>
> The combination of client-hints and browser-hits seems extremely powerful > and removes a lot of the guesswork that we have all adapted to. In your > proposal you mention the possibility of having a "well defined list of > variable." I think this is particularly important. Best practice for > extending these variable could leverage existing practices for HTTP headers > or perhaps javascript API calls. > Yep. I'm explicitly limiting variables to what's currently already available in the browser - don't want to get into the business of trying to define new ones. > Compression of this header (ideally in the context of general HTTP/2.0 > header compression) is vital for adoption, especially in the mobile context > where every byte matters. > +1. Should have a new spec up soon which will, hopefully, address part of this problem. The basic idea being that many of the variables are binary (ex, WebGL on/off), which means that we can pack them very efficiently. The tricky part is narrowing down the list of "continuos" variables like viewport sizes, etc. ig > From: Ilya Grigorik <ilya@igvita.com> > Date: Friday, November 9, 2012 12:32 PM > To: John Kemp <john@jkemp.net> > Cc: "ietf-http-wg@w3.org" <ietf-http-wg@w3.org> > Subject: Re: RFC: draft-brown-device-stock-ua-00.txt > Resent-From: <ietf-http-wg@w3.org> > Resent-Date: Friday, November 9, 2012 12:33 PM > > > > On Fri, Nov 9, 2012 at 11:33 AM, John Kemp <john@jkemp.net> wrote: > >> One question - what happens in the presence of an intermediary? SHOULD an >> intermediary pass on the Client-hints HTTP header, if sent by a client? > > > Yes. If the intermediary is the doing the adaptation based on the hint, > then theoretically it could drop the header when forwarding the request > (but more likely, just pass it along). > > ig > >
Received on Wednesday, 14 November 2012 09:06:39 UTC