Is this shipping in 101? That's the rumor. On Wednesday, February 2, 2022 at 8:59:39 AM UTC-8 mk...@chromium.org wrote:
> LGTM3. > > -mike > > On Tuesday, February 1, 2022 at 10:37:59 PM UTC+1 Rick Byers wrote: > >> LGTM2 >> >> On Tue, Feb 1, 2022 at 1:27 PM Domenic Denicola <dom...@chromium.org> >> wrote: >> > On Tue, Feb 1, 2022 at 11:24 AM Mike Taylor <mike...@chromium.org> wrote: >>> >>>> *Contact emails* >>>> >>>> >>>> >>>> * mike...@chromium.org, abe...@chromium.org, jadek...@chromium.org >>>> Explainer >>>> https://github.com/WICG/ua-client-hints#explainer-reducing-user-agent-granularity >>>> >>>> <https://github.com/WICG/ua-client-hints#explainer-reducing-user-agent-granularity> >>>> >>>> Specification https://www.chromium.org/updates/ua-reduction >>>> <https://www.chromium.org/updates/ua-reduction> is the closest thing that >>>> specifies Chrome’s UA Reduction plans today. As these changes land in >>>> Chromium, the Compat Standard <https://compat.spec.whatwg.org/> will be >>>> updated to reflect them (in the newly landed UA String section >>>> <https://compat.spec.whatwg.org/#ua-string-section>).* >>>> >>> >>> I want to call out that this is some really great work. For years specs >>> have basically said "use an implementation-defined value", but we knew that >>> was not sufficient for web compatibility, and it was not useful to web >>> developers or implementers. Years ago we started to capture some >>> interesting constraints in HTML's definition of navigator compatibility >>> mode >>> <https://html.spec.whatwg.org/#concept-navigator-compatibility-mode>, >>> but we knew there were many more. >>> >>> The work Mike has done has started to address this long-standing issue >>> of spec tech debt, and it's really great that he's put in the extra work >>> here instead of just taking advantage of the spec's historical looseness. >>> >>> I did a quick review on the spec and found some minor issues and >>> clarity improvement suggestions >>> <https://github.com/whatwg/compat/issues/created_by/domenic>, but >>> overall this is a great foundation and gives me confidence others can both >>> follow along with our plans, and implement compatible software based on >>> them. >>> >>> >> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> * Summary As previously detailed on the Chromium Blog >>>> <https://blog.chromium.org/2021/09/user-agent-reduction-origin-trial-and-dates.html>, >>>> >>>> we intend to proceed with Phase 4 of the User-Agent Reduction plan. In >>>> Phase 4, the MINOR.BUILD.PATCH version numbers are reduced to "0.0.0". For >>>> use cases requiring high-entropy full version information, developers are >>>> encouraged to migrate to the User Agent Client Hints API >>>> <https://web.dev/migrate-to-ua-ch/>, in particular the >>>> Sec-CH-UA-Full-Version-List >>>> <https://wicg.github.io/ua-client-hints/#sec-ch-ua-full-version-list> >>>> hint. >>>> Blink component Blink >>>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink> TAG >>>> review https://github.com/w3ctag/design-reviews/issues/640 >>>> <https://github.com/w3ctag/design-reviews/issues/640> TAG review status >>>> Issues addressed Risks Interoperability and Compatibility Any time you >>>> modify the User-Agent string there is a risk of some content somewhere >>>> depending on the previous format. There should not be interop risks, as >>>> each browser sends its own User-Agent string. But there is a risk that >>>> content somewhere is relying on “non-zero” MINOR, BUILD, or PATCH >>>> information. My personal view is that the risk is low compared to the rest >>>> of the changes to come in later phases. But in order to mitigate the risk >>>> of this change, we intend to slowly roll it out via Finch and observe >>>> health metrics (i.e., HTTP 4XX and 5XX error codes, etc.) and bug reports >>>> from the community. We've surveyed dozens of User-Agent parsing libraries, >>>> and as far as we know "0.0.0" will not create a problem syntactically. But >>>> the web can get pretty weird in ways we don't anticipate, hence the slow >>>> roll-out and incremental path towards User-Agent Reduction. Gecko: >>>> Shipped/Shipping. Firefox has frozen (or capped) much of their UA string >>>> already. WebKit: Shipped/Shipping. Safari has already frozen everything in >>>> their UA string except for version number info. Web developers: Mixed >>>> signals. Reactions have ranged from positive to indifferent to negative, >>>> from various channels. Debuggability No special DevTools support needed. >>>> Is >>>> this feature fully tested by web-platform-tests >>>> <https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>? >>>> >>>> No Flag name reduce-user-agent Requires code in //chrome? False Tracking >>>> bug https://bugs.chromium.org/p/chromium/issues/detail?id=1282229 >>>> <https://bugs.chromium.org/p/chromium/issues/detail?id=1282229> Launch bug >>>> https://bugs.chromium.org/p/chromium/issues/detail?id=1282238 >>>> <https://bugs.chromium.org/p/chromium/issues/detail?id=1282238> Estimated >>>> milestones We aim to start rollout in M101. We will update this thread >>>> once >>>> the feature is shipping to 100% of the stable population. Link to entry on >>>> the Chrome Platform Status >>>> https://chromestatus.com/feature/6311349754789888 >>>> <https://chromestatus.com/feature/6311349754789888> * >>>> >>>> -- >>>> 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/05b6cf46-7bce-bd03-8a93-0db496a3a26e%40chromium.org >>>> >>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/05b6cf46-7bce-bd03-8a93-0db496a3a26e%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/CAM0wra_K7OF8TLhuWZXq8ROjb%2Bns2hDbPow%2BhFOFKMhc9pvUHQ%40mail.gmail.com >>> >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAM0wra_K7OF8TLhuWZXq8ROjb%2Bns2hDbPow%2BhFOFKMhc9pvUHQ%40mail.gmail.com?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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