From 415c1882f658b84a148e8045bfdc19b3011c18e5 Mon Sep 17 00:00:00 2001
From: Patrick Brosset <patrick.brosset@microsoft.com>
Date: Wed, 24 Sep 2025 10:18:54 +0200
Subject: [PATCH 1/3] Add the referencetarget early feature

---
 features/referencetarget.yml      | 8 ++++++++
 features/referencetarget.yml.dist | 6 ++++++
 scripts/specs.ts                  | 4 ++++
 3 files changed, 18 insertions(+)
 create mode 100644 features/referencetarget.yml
 create mode 100644 features/referencetarget.yml.dist

diff --git a/features/referencetarget.yml b/features/referencetarget.yml
new file mode 100644
index 00000000000..9d9a11713e7
--- /dev/null
+++ b/features/referencetarget.yml
@@ -0,0 +1,8 @@
+name: Reference target
+description: The `referenceTarget` property of a `ShadowRoot` object forwards attributes such as `for` and `aria-labelledby` to elements inside a shadow DOM. This allows, for example, to link a `<label>` to its `<input>` even if the `<input>` is in the shadow DOM of a web component.
+spec: https://github.com/WICG/webcomponents/blob/gh-pages/proposals/reference-target-explainer.md
+group:
+  - web-components
+# No BCD keys yet as the feature hasn't shipped anywhere.
+# It's being implemented in Chromium, and has gone through an origin trial in 133-135:
+# https://chromestatus.com/feature/5188237101891584
diff --git a/features/referencetarget.yml.dist b/features/referencetarget.yml.dist
new file mode 100644
index 00000000000..803c68613e6
--- /dev/null
+++ b/features/referencetarget.yml.dist
@@ -0,0 +1,6 @@
+# Generated from: referencetarget.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
diff --git a/scripts/specs.ts b/scripts/specs.ts
index a7006a8c920..ac96ea575bc 100644
--- a/scripts/specs.ts
+++ b/scripts/specs.ts
@@ -141,6 +141,10 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://www.w3.org/TR/2022/WD-selectors-4-20220507/#the-target-within-pseudo",
         "Allowed because this is where the feature last appeared in the spec before removal."
+    ],
+    [
+        "https://github.com/WICG/webcomponents/blob/gh-pages/proposals/reference-target-explainer.md",
+        "Allowed because the referencetarget feature isn't in a spec yet."
     ]
 ];
 

From 8600b7b64e959b74e44c1104772ed292635088a6 Mon Sep 17 00:00:00 2001
From: Patrick Brosset <patrickbrosset@gmail.com>
Date: Tue, 14 Oct 2025 16:15:24 -0400
Subject: [PATCH 2/3] Update referencetarget.yml

Co-authored-by: Daniel D. Beck <daniel@ddbeck.com>
---
 features/referencetarget.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/features/referencetarget.yml b/features/referencetarget.yml
index 9d9a11713e7..6274c20e3af 100644
--- a/features/referencetarget.yml
+++ b/features/referencetarget.yml
@@ -1,5 +1,5 @@
 name: Reference target
-description: The `referenceTarget` property of a `ShadowRoot` object forwards attributes such as `for` and `aria-labelledby` to elements inside a shadow DOM. This allows, for example, to link a `<label>` to its `<input>` even if the `<input>` is in the shadow DOM of a web component.
+description: The `referenceTarget` property of a `ShadowRoot` object forwards attributes such as `for` and `aria-labelledby` to elements inside a shadow DOM. You can use this to, for example, link a `<label>` to its `<input>` even if the `<input>` is in the shadow DOM of a web component.
 spec: https://github.com/WICG/webcomponents/blob/gh-pages/proposals/reference-target-explainer.md
 group:
   - web-components

From 4bf03cda9f03cb938314550012f51de282c9a8fe Mon Sep 17 00:00:00 2001
From: Patrick Brosset <patrickbrosset@gmail.com>
Date: Tue, 14 Oct 2025 16:15:48 -0400
Subject: [PATCH 3/3] Update referencetarget.yml

Co-authored-by: Daniel D. Beck <daniel@ddbeck.com>
---
 features/referencetarget.yml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/features/referencetarget.yml b/features/referencetarget.yml
index 6274c20e3af..1d07c121057 100644
--- a/features/referencetarget.yml
+++ b/features/referencetarget.yml
@@ -3,6 +3,5 @@ description: The `referenceTarget` property of a `ShadowRoot` object forwards at
 spec: https://github.com/WICG/webcomponents/blob/gh-pages/proposals/reference-target-explainer.md
 group:
   - web-components
-# No BCD keys yet as the feature hasn't shipped anywhere.
-# It's being implemented in Chromium, and has gone through an origin trial in 133-135:
-# https://chromestatus.com/feature/5188237101891584
+# Expected keys via Chrome origin trial in 133-135 https://chromestatus.com/feature/5188237101891584
+# api.Element.attachShadow.options_referenceTarget_parameter