Contact emailsdjmit...@chromium.org Explainer https://github.com/djmitche/web-explainers/blob/main/sec-ch-ua-form-factor.md
Specificationhttps://wicg.github.io/ua-client-hints/#sec-ch-ua-form-factor Design docs https://github.com/djmitche/web-explainers/blob/main/sec-ch-ua-form-factor.md Summary This hint indicates the "form-factor" of the user-agent / device, so that the site can tailor its response. Blink componentBlink>Network <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ENetwork> Search tagsua-ch <https://chromestatus.com/features#tags:ua-ch>, uach <https://chromestatus.com/features#tags:uach>, form-factor <https://chromestatus.com/features#tags:form-factor> TAG reviewThis feature simply adds a new hint to the existing set of hints, containing data that was previously represented in the user-agent string. TAG review statusNot applicable Risks Interoperability and Compatibility If other browsers do not implement this hint, then the information will only be available in Chrome, and other browsers will implicitly return an empty value. *Gecko*: No signal *WebKit*: No signal *Web developers*: No signals *Other signals*: Ergonomics None - this fits with existing, similar client hints. Activation No activation risks - developers will always need to handle the situation where this hint is unavailable. Security None 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? No change to existing behavior; this adds a new hint which sites must opt in to. Killswitch is available: ClientHintsFormFactor Debuggability No changes in the checklist apply. Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?Yes Is this feature fully tested by web-platform-tests <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md> ?Yes Included in existing tests for other client hints: https://wpt.fyi/results/html/webappapis/system-state-and-capabilities/the-navigator-object/navigator_user_agent.https.html?label=experimental&label=master&aligned https://wpt.fyi/results/workers/WorkerNavigator_userAgentData.https.html?label=experimental&label=master&aligned DevTrial instructions https://github.com/djmitche/web-explainers/blob/main/sec-ch-ua-form-factor-howto.md Flag name on chrome://flagsNone Finch feature nameClientHintsFormFactor Requires code in //chrome?True Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1442283 Launch bughttps://launch.corp.google.com/launch/4258684 MeasurementNone Availability expectationFeature is available only in Chromium browsers for the foreseeable future. Adoption expectationFeature is used by specific partner(s) to provide functionality within 12 months of launch in Chrome. Adoption planNew form-factors will add additional strings to this hint, within the values given in the draft spec. The ClientHintsXRFormFactor gates one such addition. Estimated milestones Shipping on desktop 123 DevTrial on desktop 122 Shipping on Android 123 DevTrial on Android 122 Shipping on WebView 123 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). No open issues Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5162545698045952 Links to previous Intent discussionsIntent to prototype: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALMtyTTPUMfjo2v9s%3DKMALpS5MUcicvpM2ycNtz6GbRZ9JOaXQ%40mail.gmail.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 blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CALMtyTRPFmmHkrk24dSby%2B1bqTft%3DtUG-btxP_bg4Ckx4DNarw%40mail.gmail.com.
