Hi blink-dev, User-agent client hint is currently ramping up to 10% of the stable release population on Android WebView.
Best, Victor On Tuesday, August 29, 2023 at 2:13:52 PM UTC-4 Victor Tan wrote: > Hi blink-dev, > > User-agent client hint is currently ramping up to 1% of the stable release > population on Android WebView. > New schedule timeline as follows: > 1% ~ Aug 29, 2023 > 10% ~ Sep 12, 2023 > TOT default ~ Sep 26, 2023 > > Thanks. > > Best, > Victor > > On Thursday, August 24, 2023 at 7:39:59 PM UTC-4 TAMURA, Kent wrote: > >> LGTM3. >> >> >> On Fri, Aug 25, 2023 at 12:34 AM 'Rick Byers' via blink-dev < >> blink-dev@chromium.org> wrote: >> >>> Sorry for the delay, LGTM2 >>> >>> I'm surprised you need a ramp-up for this. New APIs are generally safe >>> so we usually don't finch them. But if you'd rather do a finch roll-out for >>> extra safety, I have no objection. >>> >>> Rick >>> >>> On Thu, Aug 24, 2023 at 9:10 AM Peter Beverloo <pe...@chromium.org> >>> wrote: >>> >>>> Non-API OWNER LGTM to proceed on WebView - thank you for all the >>>> diligence you've done on understanding and navigating the platform >>>> constraints! >>>> >>>> Thanks, >>>> Peter >>>> >>>> >>>> On Wed, Aug 23, 2023 at 10:45 PM 'Victor Tan' via blink-dev < >>>> blink-dev@chromium.org> wrote: >>>> >>>>> can anyone take a look at this? thanks. :) >>>>> >>>>> On Wednesday, August 16, 2023 at 1:40:38 PM UTC-4 Chris Harrelson >>>>> wrote: >>>>> >>>>>> LGTM1 >>>>>> >>>>>> On Tue, Aug 15, 2023 at 2:19 PM Victor Tan <vict...@chromium.org> >>>>>> wrote: >>>>>> >>>>>>> Currently, we haven't confirmed the public plan for >>>>>>> user-agent reduction on WeView. We won't do user-agent reduction before >>>>>>> completing roll-out user-agent client hints. >>>>>>> >>>>>>> Victor >>>>>>> >>>>>>> On Tue, Aug 15, 2023 at 5:13 PM Bhanu Vattikonda <vbh...@google.com> >>>>>>> wrote: >>>>>>> >>>>>>>> Is there a corresponding User-Agent reduction plan for Android >>>>>>>> WebView? >>>>>>>> >>>>>>>> On Tuesday, August 15, 2023 at 12:30:17 PM UTC-7 >>>>>>>> vict...@chromium.org wrote: >>>>>>>> >>>>>>>>> Contact emails >>>>>>>>> >>>>>>>>> vict...@chromium.org, mike...@chromium.org >>>>>>>>> >>>>>>>>> Explainer >>>>>>>>> >>>>>>>>> https://github.com/WICG/client-hints-infrastructure#readme >>>>>>>>> >>>>>>>>> >>>>>>>>> https://github.com/WICG/ua-client-hints#explainer-reducing-user-agent-granularity >>>>>>>>> >>>>>>>>> Specification >>>>>>>>> >>>>>>>>> https://wicg.github.io/ua-client-hints/ >>>>>>>>> >>>>>>>>> Summary >>>>>>>>> >>>>>>>>> User-agent client hints (a set of `Sec-CH-UA-*`) aim to deprecate >>>>>>>>> and replace the User-Agent header to reduce the passive >>>>>>>>> fingerprinting >>>>>>>>> surface we expose via HTTP requests. As we previously rolled-out >>>>>>>>> user-agent >>>>>>>>> client hints on Windows, Mac, Linux, Chrome OS and Android, we intend >>>>>>>>> to >>>>>>>>> proceed with shipping user-agent client hints on Android WebView. For >>>>>>>>> overridden user-agent strings, we only populate user-agent client >>>>>>>>> hints if >>>>>>>>> the overridden user-agent contains the default user-agent. In this >>>>>>>>> case, we >>>>>>>>> will only generate low-entropy user-agent client hints If users also >>>>>>>>> override the user-agent string through command-line. >>>>>>>>> >>>>>>>>> Blink component >>>>>>>>> >>>>>>>>> Blink>Network>ClientHints >>>>>>>>> >>>>>>>>> TAG review >>>>>>>>> >>>>>>>>> https://github.com/w3ctag/design-reviews/issues/320 >>>>>>>>> >>>>>>>>> TAG review status >>>>>>>>> >>>>>>>>> Closed. >>>>>>>>> >>>>>>>>> Risks >>>>>>>>> Interoperability and Compatibility >>>>>>>>> >>>>>>>>> Introducing User-Agent client hints in itself won't affect any >>>>>>>>> page since it's purely opt-in features. It helps us to improve the >>>>>>>>> interoperability between Chrome and WebView. >>>>>>>>> >>>>>>>>> Here is our proposed rollout plan in Chrome Stable channel >>>>>>>>> (Canary/Dev/Beta has been enabled 50%), with the understanding that >>>>>>>>> if we >>>>>>>>> discover concerning breakage or regressions via health metrics or bug >>>>>>>>> reports we will pause the rollout: >>>>>>>>> >>>>>>>>> >>>>>>>>> Stage >>>>>>>>> >>>>>>>>> Duration >>>>>>>>> >>>>>>>>> Date >>>>>>>>> >>>>>>>>> Stable 1% (M116+) >>>>>>>>> >>>>>>>>> M116 stable release is shipping to 100% (a best guess) >>>>>>>>> >>>>>>>>> Aug 22, 2023 >>>>>>>>> >>>>>>>>> Stable 10% (M116+) >>>>>>>>> >>>>>>>>> ~2 weeks after previous stage >>>>>>>>> >>>>>>>>> Sep 5, 2023 >>>>>>>>> >>>>>>>>> TOT Default (M117) >>>>>>>>> >>>>>>>>> ~2 weeks after previous stage >>>>>>>>> >>>>>>>>> Sep 19, 2023 >>>>>>>>> >>>>>>>>> Stable 100% (M116=>M117) >>>>>>>>> >>>>>>>>> ~ Same business day as previous stage >>>>>>>>> >>>>>>>>> Sep 19, 2023 >>>>>>>>> >>>>>>>>> Gecko: Non-harmful on User-Agent client hints ( >>>>>>>>> https://github.com/mozilla/standards-positions/issues/202). >>>>>>>>> >>>>>>>>> WebKit: No signals ( >>>>>>>>> https://github.com/WebKit/standards-positions/issues/70). >>>>>>>>> >>>>>>>>> Web developers: Mixed signals (https://crbug.com/1430051 >>>>>>>>> <https://bugs.chromium.org/p/chromium/issues/detail?id=1430051>). >>>>>>>>> We know at least one site that uses user-agent client hints on >>>>>>>>> Android >>>>>>>>> WebView.. >>>>>>>>> >>>>>>>>> Debuggability >>>>>>>>> >>>>>>>>> No special DevTools support needed. The UA Client Hints headers >>>>>>>>> will be as debuggable as other request headers, through DevTools’ >>>>>>>>> network >>>>>>>>> tab. >>>>>>>>> >>>>>>>>> Will this feature be supported on all six Blink platforms >>>>>>>>> (Windows, Mac, Linux, Chrome OS, Android, and Android WebView)? >>>>>>>>> >>>>>>>>> Yes >>>>>>>>> >>>>>>>>> Notes: The existing flag UserAgentClientHint was already enabled >>>>>>>>> for other five platforms (Windows, Mac, Linux, Chrome OS and Android). >>>>>>>>> >>>>>>>>> Is this feature fully tested by web-platform-tests >>>>>>>>> <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md> >>>>>>>>> ? >>>>>>>>> >>>>>>>>> https://wpt.fyi/results/client-hints >>>>>>>>> >>>>>>>>> Flag name >>>>>>>>> >>>>>>>>> UserAgentClientHint >>>>>>>>> >>>>>>>>> Tracking bug >>>>>>>>> >>>>>>>>> https://crbug.com/1430051 >>>>>>>>> <https://bugs.chromium.org/p/chromium/issues/detail?id=1430051> >>>>>>>>> >>>>>>>>> Launch bug >>>>>>>>> >>>>>>>>> https://launch.corp.google.com/launch/4261345 >>>>>>>>> >>>>>>>>> Link to entry on the Chrome Platform Status >>>>>>>>> https://chromestatus.com/feature/5127746375647232 >>>>>>>>> >>>>>>>> -- >>>>>>> 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+...@chromium.org. >>>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJh4P7Hs_mYf2XdSU8M-vTsVuapefb%3D-AOMSh-dmObk8s75X_g%40mail.gmail.com >>>>>>> >>>>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAJh4P7Hs_mYf2XdSU8M-vTsVuapefb%3D-AOMSh-dmObk8s75X_g%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/e07fe0c5-959a-4ed3-b35e-dee0dd68a1cbn%40chromium.org >>>>> >>>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/e07fe0c5-959a-4ed3-b35e-dee0dd68a1cbn%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/CALt3x6mvxAjXNJ5aUez-ezfp2HUXLari0iALm5RiAyLun%2BN2oQ%40mail.gmail.com >>>> >>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALt3x6mvxAjXNJ5aUez-ezfp2HUXLari0iALm5RiAyLun%2BN2oQ%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/CAFUtAY8tdKTJ2BSPVFKDHq-rqvEObErJuviWRdeD4xWs%2BJyU2g%40mail.gmail.com >>> >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY8tdKTJ2BSPVFKDHq-rqvEObErJuviWRdeD4xWs%2BJyU2g%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> >> >> -- >> TAMURA, Kent >> Software Engineer, Google >> >> >> -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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