Contact emails rby...@chromium.org, tannal2...@gmail.com
Specification https://drafts.csswg.org/css-fonts/#cssfontfeaturevaluesrule Design docs https://developer.mozilla.org/en-US/docs/Web/API/CSSFontFeatureValuesRule Summary We were accidentally missing the [Exposed=Window] on the CSSFontFeaturesValueRule interface, so window.CSSFontFeaturesValueRule is incorrectly undefined even though the API was otherwise exposed. This interface has no constructor and it's unlikely that any website would be looking for it specifically, but it's technically potentially helpful for feature detection. Blink component Blink>CSS TAG review None TAG review status Not applicable Risks Interoperability and Compatibility No behavior change other than 'CSSFontFeatureValuesRule in window'. Like all new APIs exposed on 'window' there is a little risk that a poorly written website could be impacted, eg. if a website was relying on legacy features like window.CSSFontFeatureValuesRule mapping to an <iframe name=CSSFontFeatureValuesRule>. However in this case I judge the risk to be virtually non-existent because: 1) This is a long, specific and obscure name - extremely unlikely to be used accidentally by a website (as window.Report was). 2) Firefox and Safari have already shipped this API without issue 3) I searched all of GitHub for 'CSSFontFeatureValuesRule' and didn't get a single hit - very unusual. Gecko: Shipped/Shipping (https://developer.mozilla.org/en-US/docs/Web/API/CSSFontFeatureValuesRule) WebKit: Shipped/Shipping Web developers: No signals (https://developer.mozilla.org/en-US/docs/Web/API/CSSFontFeatureValuesRule) Other signals: 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? None Debuggability None 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? Yes https://wpt.fyi/results/css/css-fonts/idlharness.html?label=master&label=experimental&aligned&q=css-fonts Flag name on about://flags Finch feature name ExposeCSSFontFeatureValuesRule Requires code in //chrome? False Tracking bug https://issues.chromium.org/issues/385925149 Estimated milestones No milestones specified Anticipated spec changes Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (eg links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (eg, changing to naming or structure of the API in a non-backward-compatible way). None Link to entry on the Chrome Platform Status https://chromestatus.com/feature/6275972238934016?gate=5199584181354496 This intent message was generated by Chrome Platform Status. -- 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 visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/677d6048.2b0a0220.2e82a8.027c.GAE%40google.com.
