- From: Ilya Grigorik <igrigorik@google.com>
- Date: Tue, 5 Nov 2013 14:18:29 -0800
- To: "public-respimg@w3.org" <public-respimg@w3.org>
- Message-ID: <CADXXVKqsV+iUPb-E4kZoot2vLczRV_+S=Rut=wMJLF_V_a+N+g@mail.gmail.com>
Quick update, if you're interested in following along on CH status / progress: - Blink intent to implement thread: https://groups.google.com/a/chromium.org/d/msg/blink-dev/c38s7y6dH-Q/bNFczRZj5MsJ - FF bugzilla thread: https://bugzilla.mozilla.org/show_bug.cgi?id=935216 ig On Thu, Oct 31, 2013 at 2:41 PM, Ilya Grigorik <igrigorik@google.com> wrote: > The goal of Client Hints is to automate (where possible) the negotiation > of optimal resolution and size of delivered image resources. > > - For a quick intro: https://github.com/igrigorik/http-client-hints > - New v1 draft: > https://github.com/igrigorik/http-client-hints/blob/master/draft-grigorik-http-client-hints-01.txt > - For server folks (or if you want to see it in action): > https://github.com/igrigorik/http-client-hints/tree/master/server > > With that in mind, a quick overview of differences from previous draft: > > - Hints are sent in different headers (e.g. CH-DPR: 2.0) - this allows > better interop with existing caches [1] > - New "server confirmation" header (e.g. "DPR: 1.5") allows server to > indicate the DPR of served resource, which is then used to adjust intrinsic > size calculations on the client. [2] > - "Device width" has been replaced with "Resource display width" (in > DIPs) [3] > > Also, I've added a section on interop with src-N (see [4]) to demonstrate > how CH and src-N can work together to simplify the various RICG use cases. > That said, note that the choice of using/not-using either src-N and/or CH > is completely up to you. You can combine both and get the benefit of > automation of CH + art-direction of src-N, or, you can use src-N for > everything, or, you can just use CH to automate resolution switching (viar > CH-DPR hint) and resizing (via CH-RW hint). > > Finally, we have a CH prototype in Chrome that you can play with, check > out the instructions here: > > https://github.com/igrigorik/http-client-hints/tree/master/server#client-hints-clients > > Feedback, suggestions, questions, etc.. all welcome! > > ig > > [1] https://github.com/igrigorik/http-client-hints/issues/14 > [2] https://github.com/igrigorik/http-client-hints/issues/13 > [3] > https://github.com/igrigorik/http-client-hints/blob/master/draft-grigorik-http-client-hints-01.txt#L239 > [4] https://github.com/igrigorik/http-client-hints#interaction-with-src-n >
Received on Tuesday, 5 November 2013 22:19:38 UTC