Merge branch 'web-platform-dx:main' into main

Dp-Goog · web-flow · commit e743fae4bb43 · 2026-04-03T10:07:13.000-07:00
diff --git a/features/abortable-fetch.yml b/features/abortable-fetch.yml
@@ -1,3 +1,4 @@
 name: Abortable fetch
 description: If you construct a fetch request with an `AbortSignal`, you can cancel the request.
 spec: https://fetch.spec.whatwg.org/#ref-for-dom-request-signal%E2%91%A1
+group: fetch
diff --git a/features/avif.yml b/features/avif.yml
@@ -1,6 +1,7 @@
 name: AVIF
 description: AVIF (AV1 Image File Format) is an image format based on the AV1 video format.
 spec: https://aomediacodec.github.io/av1-avif/
+group: image-formats
 caniuse: avif
 compat_features:
   - mediatypes.image.avif
diff --git a/features/border-shape.yml b/features/border-shape.yml
@@ -0,0 +1,6 @@
+name: border-shape
+description: The `border-shape` CSS property sets the geometry of the border box, changing the shape of any applicable border, border image, focus outline, or shadow.
+spec: https://drafts.csswg.org/css-borders-4/#border-shape
+compat_features:
+  - css.properties.border-shape
+  - css.properties.border-shape.none
diff --git a/features/border-shape.yml.dist b/features/border-shape.yml.dist
@@ -0,0 +1,9 @@
+# Generated from: border-shape.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
+compat_features:
+  - css.properties.border-shape
+  - css.properties.border-shape.none
diff --git a/features/draft/spec/navigation-timing-2.yml b/features/draft/spec/navigation-timing-2.yml
diff --git a/features/draft/spec/navigation-timing-2.yml.dist b/features/draft/spec/navigation-timing-2.yml.dist
diff --git a/features/draft/spec/web-animations-2.yml b/features/draft/spec/web-animations-2.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-16
+draft_date: 2026-04-02
 name: Web Animations Module Level 2
 description: TODO
 spec: https://drafts.csswg.org/web-animations-2/
@@ -53,7 +53,6 @@ compat_features:
 #   - api.Element.animate.implicit_tofrom
 #   - api.Element.animate.options_composite_parameter
 #   - api.Element.animate.options_id_parameter
-#   - api.Element.animate.options_iterationComposite_parameter
 #   - api.Element.animate.options_pseudoElement_parameter
 #   - api.Element.animate.options_rangeEnd_parameter
 #   - api.Element.animate.options_rangeStart_parameter
@@ -63,8 +62,10 @@ compat_features:
 #   - api.KeyframeEffect.KeyframeEffect
 #   - api.KeyframeEffect.composite
 #   - api.KeyframeEffect.getKeyframes
-#   - api.KeyframeEffect.iterationComposite
 #   - api.KeyframeEffect.pseudoElement
 #   - api.KeyframeEffect.setKeyframes
 #   - api.KeyframeEffect.target
 #   - api.ShadowRoot.getAnimations
+# - iterationComposite:
+#   - api.Element.animate.options_iterationComposite_parameter
+#   - api.KeyframeEffect.iterationComposite
diff --git a/features/dynamic-range-limit.yml b/features/dynamic-range-limit.yml
@@ -1,7 +1,9 @@
-draft_date: 2025-10-08
-name: CSS Color HDR Module Level 1
-description: TODO
-spec: https://drafts.csswg.org/css-color-hdr-1/
+name: dynamic-range-limit
+description: >
+  The `dynamic-range-limit` CSS property controls the peak luminance of high dynamic range content.
+  You can use this to coordinate the apparent brightness of HDR and SDR content.
+spec: https://drafts.csswg.org/css-color-hdr-1/#controlling-dynamic-range
+group: css
 compat_features:
   - css.properties.dynamic-range-limit
   - css.properties.dynamic-range-limit.constrained
diff --git a/features/dynamic-range-limit.yml.dist b/features/dynamic-range-limit.yml.dist
@@ -1,4 +1,4 @@
-# Generated from: css-color-hdr-1.yml
+# Generated from: dynamic-range-limit.yml
 # Do not edit this file by hand. Edit the source file instead!
 
 status:
diff --git a/features/fetch-formdata.yml b/features/fetch-formdata.yml
@@ -1,6 +1,7 @@
 name: Fetch form data
 description: The `Request.formData()` and `Response.formData()` methods read a request or response body and return a `FormData` promise. You can use it to access the fields of a form submission.
 spec: https://fetch.spec.whatwg.org/#body-mixin
+group: fetch
 compat_features:
   - api.Request.formData
   - api.Response.formData
diff --git a/features/fetch-metadata.yml b/features/fetch-metadata.yml
@@ -1,3 +1,4 @@
 name: Fetch metadata request headers
 description: The `Sec-Fetch-Dest`, `Sec-Fetch-Mode`, `Sec-Fetch-Site`, and `Sec-Fetch-User` HTTP headers provide extra information about the way a request was made, to help servers reject certain kinds of malicious requests.
 spec: https://w3c.github.io/webappsec-fetch-metadata/
+group: fetch
diff --git a/features/fetch-priority.yml b/features/fetch-priority.yml
@@ -3,6 +3,8 @@ description: The `fetch()` `priority` option and the `fetchpriority` HTML attrib
 spec:
   - https://fetch.spec.whatwg.org/#request-priority
   - https://html.spec.whatwg.org/multipage/urls-and-fetching.html#fetch-priority-attributes
-group: resource-hints
+group:
+  - resource-hints
+  - fetch
 status:
   compute_from: http.headers.Link.fetchpriority
diff --git a/features/fetch-request-streams.yml b/features/fetch-request-streams.yml
@@ -1,5 +1,6 @@
 name: Fetch upload streams
 description: A `fetch()` request uploads a stream of data to the server when a request's `body` property is a `ReadableStream` object.
 spec: https://fetch.spec.whatwg.org/#concept-body-stream
+group: fetch
 compat_features:
   - api.Request.body
diff --git a/features/fetch.yml b/features/fetch.yml
@@ -1,6 +1,7 @@
 name: Fetch
 description: The `fetch()` method makes asynchronous HTTP requests.
 spec: https://fetch.spec.whatwg.org/
+group: fetch
 caniuse: fetch
 status:
   compute_from: api.fetch
diff --git a/features/fetchlater.yml b/features/fetchlater.yml
@@ -1,6 +1,7 @@
 name: fetchLater
 description: "The `fetchLater()` method requests a deferred fetch sent at an unknown time. The browser chooses a reliable time to send the request, ideally when the document is unloaded, and ignores the response. This API is useful for sending beacons to a server without expecting a particular response."
 spec: https://fetch.spec.whatwg.org/#dom-window-fetchlater
+group: fetch
 compat_features:
   - api.FetchLaterResult
   - api.FetchLaterResult.activated
diff --git a/features/font-family-math.yml b/features/font-family-math.yml
@@ -6,5 +6,8 @@ spec: https://drafts.csswg.org/css-fonts-4/#math-def
 # 2026-03-16 — low → false — Upstream data incorrectly reported that `font-family: math` shipped in Firefox 145. It actually shipped in Firefox 149.
 # References:
 # - https://github.com/mdn/browser-compat-data/pull/29250
+group:
+  - mathml
+  - css
 compat_features:
   - css.properties.font-family.math
diff --git a/features/hsts.yml b/features/hsts.yml
@@ -1,6 +1,8 @@
 name: HTTP Strict Transport Security
 description: The `Strict-Transport-Security` HTTP response header informs browsers that the site should only be accessed using HTTPS, and that any future attempts to access it using HTTP should automatically be converted to HTTPS. Also known as HSTS.
 spec: https://www.rfc-editor.org/rfc/rfc6797
-group: security
+group:
+  - security
+  - http
 compat_features:
   - http.headers.Strict-Transport-Security
diff --git a/features/http-authentication.yml b/features/http-authentication.yml
@@ -4,6 +4,7 @@ spec:
   - https://httpwg.org/specs/rfc9110.html#authentication
   - https://httpwg.org/specs/rfc7616.html
   - https://www.rfc-editor.org/rfc/rfc4120
+group: http
 status:
   compute_from:
     - http.headers.Authorization
diff --git a/features/http11.yml b/features/http11.yml
@@ -1,6 +1,7 @@
 name: HTTP/1.1
 description: HTTP/1.1 is a network protocol used by browsers and servers. It has been superseded by HTTP/2 and HTTP/3.
 spec: https://httpwg.org/specs/rfc9112.html
+group: http
 status:
   compute_from: http.methods.GET
 compat_features:
diff --git a/features/http2.yml b/features/http2.yml
@@ -1,6 +1,7 @@
 name: HTTP/2
 description: The HTTP/2 protocol is a major revision of the HTTP network protocol, providing improved performance and efficiency by using a single TCP connection to send multiple streams of data at once.
 spec: https://httpwg.org/specs/rfc9113.html
+group: http
 caniuse: http2
 # Since HTTP/2 has no representation in BCD, the following version numbers are
 # from https://caniuse.com/http2. The keystone release is Safari 9.
diff --git a/features/http3.yml b/features/http3.yml
@@ -1,6 +1,7 @@
 name: HTTP/3
 description: HTTP/3 is a major revision of the HTTP network protocol, providing improved performance and efficiency by using QUIC as the underlying transport protocol.
 spec: https://httpwg.org/specs/rfc9114.html
+group: http
 caniuse: http3
 # Since HTTP/3 has no representation in BCD, the following version numbers are
 # from https://caniuse.com/http3. TODO: capture partial support in Safari with
diff --git a/features/jpegxl.yml b/features/jpegxl.yml
@@ -1,6 +1,7 @@
 name: JPEG XL
 description: The JPEG XL image format is a raster graphics file format that supports animation, alpha transparency, and lossy as well as lossless compression.
 spec: https://www.iso.org/standard/85253.html
+group: image-formats
 caniuse: jpegxl
 compat_features:
   - mediatypes.image.jxl
diff --git a/features/languagemodel.yml b/features/languagemodel.yml
@@ -0,0 +1,17 @@
+name: LanguageModel
+description: The `LanguageModel` API prompts an on-device language model. Also known as the Prompt API.
+spec: http://webmachinelearning.github.io/prompt-api/
+# compat_features:
+# Missing from BCD: api.LanguageModel
+# Missing from BCD: api.LanguageModel.append
+# Missing from BCD: api.LanguageModel.availability_static
+# Missing from BCD: api.LanguageModel.clone
+# Missing from BCD: api.LanguageModel.contextUsage
+# Missing from BCD: api.LanguageModel.contextWindow
+# Missing from BCD: api.LanguageModel.create_static
+# Missing from BCD: api.LanguageModel.destroy
+# Missing from BCD: api.LanguageModel.measureContextUsage
+# Missing from BCD: api.LanguageModel.oncontextoverflow_event
+# Missing from BCD: api.LanguageModel.prompt
+# Missing from BCD: api.LanguageModel.promptStreaming
+# Missing from BCD: http.headers.Permissions-Policy.language-model
diff --git a/features/languagemodel.yml.dist b/features/languagemodel.yml.dist
@@ -0,0 +1,6 @@
+# Generated from: languagemodel.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
diff --git a/features/mathml-full.yml b/features/mathml-full.yml
@@ -1,6 +1,7 @@
 name: MathML Full
 description: MathML specifies several elements and attributes that are not included in MathML Core. Math applications outside of browsers may implement these features, but they are discouraged for web use.
 spec: https://w3c.github.io/mathml/
+group: mathml
 discouraged:
   according_to:
     - https://w3c.github.io/mathml-core/#introduction
diff --git a/features/mathml.yml b/features/mathml.yml
@@ -1,6 +1,7 @@
 name: MathML
 description: MathML, or the Mathematical Markup Language, describes mathematical notation, such as expressions and formulas. Also known as MathML Core.
 spec: https://w3c.github.io/mathml-core/
+group: mathml
 caniuse: mathml
 status:
   compute_from: mathml.elements.math
diff --git a/features/meta-theme-color.yml b/features/meta-theme-color.yml
@@ -1,5 +1,5 @@
 name: '<meta name="theme-color">'
-description: The `name="theme-color"` attribute for the `<meta>` HTML element sets the preferred color to customize the display of the page or the surrounding browser user interface.
+description: The `name="theme-color"` attribute for the `<meta>` HTML element suggests a color that the browser can use to customize the display of the page or the browser user interface.
 spec: https://html.spec.whatwg.org/multipage/semantics.html#meta-theme-color
 group: html
 caniuse: meta-theme-color
diff --git a/features/png.yml b/features/png.yml
@@ -1,6 +1,7 @@
 name: PNG
 description: The PNG (Portable Network Graphics) image format is a raster graphics file format with animation, alpha transparency, and lossless compression.
 spec: https://w3c.github.io/png/#Introduction
+group: image-formats
 caniuse:
   - png-alpha
   - link-icon-png
diff --git a/features/svg-discouraged.yml b/features/svg-discouraged.yml
@@ -1,6 +1,9 @@
 name: SVG 1.1
 description: The SVG 1.1 image format has several components that were excluded from SVG 2, such as fonts, alternate glyphs, and the `xlink` namespace.
 spec: https://www.w3.org/TR/SVG11/
+group:
+  - svg
+  - image-formats
 discouraged:
   according_to:
     - https://svgwg.org/svg2-draft/changes.html#substantial
diff --git a/features/svg.yml b/features/svg.yml
@@ -2,7 +2,9 @@ name: SVG
 description: The SVG image format, represented by the `<svg>` element, creates two-dimensional vector graphics with declarative or scripted interaction and animation.
 spec: https://svgwg.org/svg2-draft/
 caniuse: svg
-group: svg
+group:
+  - svg
+  - image-formats
 status:
   compute_from: svg.elements.mask.maskUnits
 compat_features:
diff --git a/features/webp.yml b/features/webp.yml
@@ -1,6 +1,7 @@
 name: WebP
 description: The WebP image format is a raster graphics file format that supports animation, alpha transparency, and lossy as well as lossless compression.
 spec: https://www.rfc-editor.org/rfc/rfc9649
+group: image-formats
 caniuse: webp
 compat_features:
   - mediatypes.image.webp
diff --git a/groups/fetch.yml b/groups/fetch.yml
@@ -0,0 +1,2 @@
+name: Fetch
+# description: The Fetch API and its various features, and related APIs.
diff --git a/groups/http.yml b/groups/http.yml
@@ -0,0 +1,2 @@
+name: HTTP
+# description: The HTTP network protocol
diff --git a/groups/image-formats.yml b/groups/image-formats.yml
@@ -0,0 +1,3 @@
+name: Image formats
+# description: The various image formats supported by browsers.
+parent: images
diff --git a/groups/mathml.yml b/groups/mathml.yml
@@ -0,0 +1,2 @@
+name: MathML
+# description: Features related to MathML specifications.
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -46,7 +46,7 @@
     "@types/node": "^20.19.37",
     "@types/yargs": "^17.0.35",
     "ajv": "^8.18.0",
-    "caniuse-lite": "^1.0.30001782",
+    "caniuse-lite": "^1.0.30001784",
     "cheerio": "^1.2.0",
     "diff": "^8.0.4",
     "escape-html": "^1.0.3",
diff --git a/scripts/specs.ts b/scripts/specs.ts
@@ -195,6 +195,10 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://github.com/whatwg/html/pull/11723",
         "Allowed because the focusgroup spec PR hasn't landed yet. Once the PR merges, remove this and add the spec URL to the focusgroup feature."
+    ],
+    [
+        "http://webmachinelearning.github.io/prompt-api/",
+        "Allowed because that's where LanguageModel (aka Prompt API) spec currently lives."
     ]
 ];
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Generated from: css-color-hdr-1.yml`
	`1`	`+# Generated from: dynamic-range-limit.yml`
`2`	`2`	`# Do not edit this file by hand. Edit the source file instead!`
`3`	`3`
`4`	`4`	`status:`