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. 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