From b34c2519402503152ceca6fc1d9a04c6eb601d39 Mon Sep 17 00:00:00 2001
From: "Daniel D. Beck" <daniel@ddbeck.com>
Date: Sun, 16 Feb 2025 16:48:15 +0100
Subject: [PATCH 1/2] Add permissions policy feature

---
 features/draft/feature-policy.yml          | 13 ++++++++++++
 features/draft/feature-policy.yml.dist     | 12 +++++++++++
 features/draft/permissions-policy.yml      |  8 ++++++++
 features/draft/permissions-policy.yml.dist | 24 ++++++++++++++++++++++
 scripts/specs.ts                           |  4 ++++
 5 files changed, 61 insertions(+)
 create mode 100644 features/draft/feature-policy.yml
 create mode 100644 features/draft/feature-policy.yml.dist
 create mode 100644 features/draft/permissions-policy.yml
 create mode 100644 features/draft/permissions-policy.yml.dist

diff --git a/features/draft/feature-policy.yml b/features/draft/feature-policy.yml
new file mode 100644
index 00000000000..c918aa4faa2
--- /dev/null
+++ b/features/draft/feature-policy.yml
@@ -0,0 +1,13 @@
+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.HTMLIFrameElement.featurePolicy
diff --git a/features/draft/feature-policy.yml.dist b/features/draft/feature-policy.yml.dist
new file mode 100644
index 00000000000..c2a7e56cd41
--- /dev/null
+++ b/features/draft/feature-policy.yml.dist
@@ -0,0 +1,12 @@
+# 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.HTMLIFrameElement.featurePolicy
diff --git a/features/draft/permissions-policy.yml b/features/draft/permissions-policy.yml
new file mode 100644
index 00000000000..0866d7767fe
--- /dev/null
+++ b/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
diff --git a/features/draft/permissions-policy.yml.dist b/features/draft/permissions-policy.yml.dist
new file mode 100644
index 00000000000..174cd423738
--- /dev/null
+++ b/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
diff --git a/scripts/specs.ts b/scripts/specs.ts
index a50fd6ea36d..5c475a4e247 100644
--- a/scripts/specs.ts
+++ b/scripts/specs.ts
@@ -104,6 +104,10 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://www.w3.org/TR/DOM-Level-2-Style/",
         "Allowed because the css-object-model-discouraged feature points to it."
+    ],
+    [
+        "https://www.w3.org/TR/2019/WD-feature-policy-1-20190416/",
+        "Allowed because feature policy was replaced by permissions policy."
     ]
 ];
 

From 3a3ee24863f1bdba1231f93bdab231f48e154388 Mon Sep 17 00:00:00 2001
From: "Daniel D. Beck" <daniel@ddbeck.com>
Date: Mon, 17 Feb 2025 16:21:37 +0100
Subject: [PATCH 2/2] Add `FeaturePolicy` interface to feature-policy

---
 features/draft/feature-policy.yml      | 5 +++++
 features/draft/feature-policy.yml.dist | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/features/draft/feature-policy.yml b/features/draft/feature-policy.yml
index c918aa4faa2..35a51d042e2 100644
--- a/features/draft/feature-policy.yml
+++ b/features/draft/feature-policy.yml
@@ -10,4 +10,9 @@ discouraged:
     - permissions-policy
 compat_features:
   - api.Document.featurePolicy
+  - api.FeaturePolicy
+  - api.FeaturePolicy.allowedFeatures
+  - api.FeaturePolicy.allowsFeature
+  - api.FeaturePolicy.features
+  - api.FeaturePolicy.getAllowlistForFeature
   - api.HTMLIFrameElement.featurePolicy
diff --git a/features/draft/feature-policy.yml.dist b/features/draft/feature-policy.yml.dist
index c2a7e56cd41..57c00fbdc1b 100644
--- a/features/draft/feature-policy.yml.dist
+++ b/features/draft/feature-policy.yml.dist
@@ -9,4 +9,9 @@ status:
     edge: "79"
 compat_features:
   - api.Document.featurePolicy
+  - api.FeaturePolicy
+  - api.FeaturePolicy.allowedFeatures
+  - api.FeaturePolicy.allowsFeature
+  - api.FeaturePolicy.features
+  - api.FeaturePolicy.getAllowlistForFeature
   - api.HTMLIFrameElement.featurePolicy