LGTM3 On Wed, Sep 6, 2023 at 8:34 AM Mike Taylor <[email protected]> wrote:
> LGTM2 > On 9/6/23 10:25 AM, Yoav Weiss wrote: > > LGTM1 > > On Sat, Sep 2, 2023 at 1:06 AM Luke <[email protected]> wrote: > >> Apologies, https://github.com/w3ctag/design-reviews/issues/632 would be >> the relevant link. Will update in Chromestatus too. >> >> On Friday, 1 September 2023 at 23:10:25 UTC+1 [email protected] wrote: >> >>> On 8/30/23 3:55 PM, Luke wrote: >>> >>> Contact emails [email protected], [email protected] >>> >>> Explainer >>> https://github.com/wicg/user-preference-media-features-headers/blob/main/README.md >>> >>> Specification >>> https://wicg.github.io/user-preference-media-features-headers/#sec-ch-prefers-reduced-transparency >>> >>> Summary >>> >>> User Preference Media Features Client Hints Header defines a set of HTTP >>> Client Hints headers around user preference media features as defined by >>> Media Queries Level 5. If used as Critical Client Hints, these headers >>> allow servers to make smart choices regarding, e.g., CSS inlining. >>> Sec-CH-Prefers-Reduced-Transparency reflects the user's >>> prefers-reduced-transparency preference. >>> >>> >>> Blink component Blink>CSS >>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS> >>> >>> Search tags client hints >>> <https://chromestatus.com/features#tags:client%20hints>, >>> sec-ch-prefers-reduced-transparency >>> <https://chromestatus.com/features#tags:sec-ch-prefers-reduced-transparency> >>> , prefers-reduced-transparency >>> <https://chromestatus.com/features#tags:prefers-reduced-transparency> >>> >>> TAG review >>> >>> Anything relevant to link here? >>> >>> >>> >>> TAG review status Pending >>> >>> Risks >>> >>> >>> Interoperability and Compatibility >>> >>> *Gecko*: No signal ( >>> https://github.com/mozilla/standards-positions/issues/526) >>> >>> *WebKit*: No signal ( >>> https://github.com/WebKit/standards-positions/issues/15) >>> >>> *Web developers*: Positive (WICG proposal Issue: >>> https://github.com/WICG/proposals/issues/30 with feedback from >>> developers working for Facebook and Magento. Twitter: >>> https://twitter.com/kilianvalkhof/status/1392404416335056896. The >>> proposal was initially discussed in >>> https://github.com/w3c/csswg-drafts/issues/4162 and received positive >>> feedback via 18 Likes) >>> >>> *Other signals*: >>> >>> Activation >>> >>> Developers will include Sec-CH-Prefers-Reduced-Transparency in the >>> response headers Accept-CH and Critical-CH to let the browser know that >>> they’re interested in the user's transparency preferences. If supported, >>> the request header Sec-CH-Prefers-Reduced-Transparency will be populated >>> with the appropriate value. This follows the same pattern as existing >>> Preference Client Hints and as such should be easy for developers to make >>> use of. >>> >>> >>> Security >>> >>> This feature could be used for fingerprinting as it exposes a user >>> preference. However, this is already exposed to CSS/JS by the >>> `prefers-reduced-transparency` media query. >>> >>> >>> WebView application risks >>> >>> Does this intent deprecate or change behavior of existing APIs, such >>> that it has potentially high risk for Android WebView-based applications? >>> >>> >>> Debuggability >>> >>> Developers can change this client hint header value by emulating >>> prefers-reduced-transparency via Devtools in the Rendering Panel. >>> >>> >>> Will this feature be supported on all six Blink platforms (Windows, Mac, >>> Linux, Chrome OS, Android, and Android WebView)? Yes >>> >>> The feature will be supported on all platforms, but whether the user >>> will be able to signal a reduced transparency preference depends on the OS. >>> >>> >>> Is this feature fully tested by web-platform-tests >>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> >>> ? Yes >>> >>> Flag name on chrome://flags #enable-experimental-web-platform-features >>> >>> Finch feature name ClientHintsPrefersReducedTransparency >>> >>> Requires code in //chrome? False >>> >>> Tracking bug >>> https://bugs.chromium.org/p/chromium/issues/detail?id=1466423 >>> >>> Sample links >>> https://sec-ch-prefers-reduced-transparency.glitch.me >>> >>> Estimated milestones >>> Shipping on desktop 118 >>> DevTrial on desktop 118 >>> Shipping on Android 118 >>> DevTrial on Android 118 >>> >>> Anticipated spec changes >>> >>> Open questions about a feature may be a source of future web compat or >>> interop issues. Please list open issues (e.g. links to known github issues >>> in the project for the feature specification) whose resolution may >>> introduce web compat/interop risk (e.g., changing to naming or structure of >>> the API in a non-backward-compatible way). >>> >>> >>> Link to entry on the Chrome Platform Status >>> https://chromestatus.com/feature/6242983812268032 >>> >>> Links to previous Intent discussions Intent to prototype: >>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/B1ED49A6-31BF-4D28-89B3-D2973F9F12DA%40gmail.com >>> >>> This intent message was generated by Chrome Platform Status >>> <https://chromestatus.com/>. >>> >>> -- >>> 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 [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6B4E754E-49E5-47DE-B473-4AC40FC0C599%40gmail.com >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6B4E754E-49E5-47DE-B473-4AC40FC0C599%40gmail.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 [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/411a7692-6ebf-483e-8700-669569e1c6a7n%40chromium.org >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/411a7692-6ebf-483e-8700-669569e1c6a7n%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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/16d8764f-6978-490c-8a59-56aaebb34a55%40chromium.org > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/16d8764f-6978-490c-8a59-56aaebb34a55%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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