Add features for permissions policy and feature policy

features/draft/feature-policy.yml

@@ -0,0 +1,18 @@
+draft_date: 2025-02-16
+name: Feature policy
+description: The `Feature-Policy` response header sets whether a policy-controlled feature, such as an API, may be used in a document. Not to be confused with permissions policy.
+spec: https://www.w3.org/TR/2019/WD-feature-policy-1-20190416/
+caniuse: feature-policy
+discouraged:
+  according_to:
+    - https://github.com/w3c/webappsec-permissions-policy/pull/379
+  alternatives:
+    - permissions-policy
+compat_features:
+  - api.Document.featurePolicy
+  - api.FeaturePolicy
+  - api.FeaturePolicy.allowedFeatures
+  - api.FeaturePolicy.allowsFeature
+  - api.FeaturePolicy.features
+  - api.FeaturePolicy.getAllowlistForFeature
+  - api.HTMLIFrameElement.featurePolicy

features/draft/feature-policy.yml.dist

@@ -0,0 +1,17 @@
+# Generated from: feature-policy.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "74"
+    chrome_android: "74"
+    edge: "79"
+compat_features:
+  - api.Document.featurePolicy
+  - api.FeaturePolicy
+  - api.FeaturePolicy.allowedFeatures
+  - api.FeaturePolicy.allowsFeature
+  - api.FeaturePolicy.features
+  - api.FeaturePolicy.getAllowlistForFeature
+  - api.HTMLIFrameElement.featurePolicy

features/draft/permissions-policy.yml

@@ -0,0 +1,8 @@
+draft_date: 2025-02-16
+name: Permissions policy
+description: The `Permissions-Policy` response header sets whether a policy-controlled feature, such as an API, may be used in a document.
+spec: https://w3c.github.io/webappsec-permissions-policy/
+caniuse: permissions-policy
+compat_features:
+  - http.headers.Permissions-Policy
+  - http.headers.Permissions-Policy.wildcards

features/draft/permissions-policy.yml.dist

@@ -0,0 +1,24 @@
+# Generated from: permissions-policy.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "108"
+    chrome_android: "108"
+    edge: "108"
+compat_features:
+  # baseline: false
+  # support:
+  #   chrome: "88"
+  #   chrome_android: "88"
+  #   edge: "88"
+  - http.headers.Permissions-Policy
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "108"
+  #   chrome_android: "108"
+  #   edge: "108"
+  - http.headers.Permissions-Policy.wildcards

scripts/specs.ts

@@ -120,6 +120,10 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/DocumentSubtitle/explainer.md",
         "Allowed because this is where the application-title meta tag is spec'd at the moment. Remove when https://github.com/whatwg/html/issues/8909 is fixed."
+    ],
+    [
+        "https://www.w3.org/TR/2019/WD-feature-policy-1-20190416/",
+        "Allowed because feature policy was replaced by permissions policy."
     ]
 ];