LGTM3; I agree that the long-term benefits of this project outweigh the weirdness of this client hint.
On Wed, Jan 26, 2022 at 8:07 AM Rick Byers <rby...@chromium.org> wrote: > Although the utility of this specific bit does seem questionable, I'm 100% > in agreement that having a 1:1 mapping to UA string is a critical property > and should lower both the perceived and real risk of UA reduction efforts. > So emphatic LGTM2 from me. > > On Wed, Jan 26, 2022 at 10:23 AM Yoav Weiss <yoavwe...@chromium.org> > wrote: > >> Wow, LGTM1 >> >> This is a tiny addition to UA Client Hints, that will enable 1:1 >> retrofilling <https://github.com/GoogleChromeLabs/uach-retrofill>. >> >> On Tuesday, January 25, 2022 at 3:11:32 PM UTC+1 Mike Taylor wrote: >> >>> Contact emails >>> miketa...@chromium.org, jadekess...@chromium.org >>> >>> Explainer >>> >>> https://github.com/WICG/ua-client-hints#explainer-reducing-user-agent-granularity >>> >>> Specification >>> https://wicg.github.io/ua-client-hints/#sec-ch-ua-wow64 >>> >>> Summary >>> The Sec-CH-UA-WoW64 Client Hint is a backwards compatible shim for sites >>> relying on "WoW64-ness" (32-bit app running in 64-bit Windows) as they >>> transition from the User-Agent string to UA-CH. It returns a boolean value. >>> >>> >>> Blink component >>> Blink>Network>ClientHints >>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ENetwork%3EClientHints> >>> >>> Motivation >>> We would like to provide a seamless transition from User-Agent-based use >>> cases to UA-CH. The "WoW64" bit is the last missing piece to accomplish >>> this goal. >>> >>> >>> Initial public proposal >>> https://github.com/WICG/ua-client-hints/issues/217 >>> >>> Search tags >>> wow, wow64, ua-ch, uach >>> >>> TAG review >>> https://github.com/w3ctag/design-reviews/issues/640 - still open, but >>> issues have been addressed. I'll ping the existing issue with this addition >>> so folks are aware, but I don't expect it to change TAG's stance of UA-CH >>> as a feature. >>> >>> TAG review status >>> Issues addressed >>> >>> Risks >>> We don’t anticipate any risk here, we’re just moving this bit from one >>> API to another as a shim. >>> >>> Interoperability and Compatibility >>> Interop: Not all browsers expose wow64-ness in the UA string today, so >>> sites should not treat a false value as meaningful (the spec allows for >>> always returning false). >>> >>> Compat: This hint can be thought of as a compatibility shim for sites >>> migrating from User-Agent to UA-CH, otherwise N/A. >>> >>> Gecko: Non-harmful on UA-CH, but were they to implement UA-CH I would >>> not expect them to add this hint (as they don’t expose this bit in their UA >>> string anymore). >>> >>> WebKit: No signal. I would also not expect Apple to implement this one, >>> were they to implmement UA-CH. >>> >>> Web developers: Mixed signals ( >>> https://github.com/WICG/ua-client-hints/issues/217) We know of at least >>> one site (Meet) that uses wow64 to prevent sending a 7MB wasm binary to >>> users were performance is known to be lousy . >>> >>> Debuggability >>> Nothing special needed. >>> >>> >>> Is this feature fully tested by web-platform-tests? >>> We'll add some. >>> >>> Flag name >>> None. >>> >>> Requires code in //chrome? >>> False >>> >>> Estimated milestones >>> M100 >>> >>> Tracking Bug >>> https://bugs.chromium.org/p/chromium/issues/detail?id=1288837 >>> >>> >>> Link to entry on the Chrome Platform Status >>> https://chromestatus.com/feature/5682026601512960 >>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "blink-dev" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to blink-dev+unsubscr...@chromium.org. >> To view this discussion on the web visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/819ac730-e4f3-44cb-a2f2-1154de41ed6bn%40chromium.org >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/819ac730-e4f3-44cb-a2f2-1154de41ed6bn%40chromium.org?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to blink-dev+unsubscr...@chromium.org. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY_q8v5Uyv-LNg-6183b3cMQmsDkKqVmHAXbuouFWLu-4w%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY_q8v5Uyv-LNg-6183b3cMQmsDkKqVmHAXbuouFWLu-4w%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAOMQ%2Bw_hJxY_C8j5tMsWMWF0i7tjM%3DZ4L5eedaMZ1PFMmDS2Qg%40mail.gmail.com.
