Add <meta name="application-title"> feature

features/meta-application-title.yml

@@ -0,0 +1,9 @@
+name: '<meta name="application-title">'
+description: The `name="application-title"` attribute for the `<meta>` HTML element sets an installed web application's title bar text.
+# No spec yet. Inclusion in the HTML spec depends on multi-vendor implementation.
+# See https://github.com/whatwg/html/issues/8909
+# So, for now, the Edge explainer is the closest thing to a spec.
+spec: https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/DocumentSubtitle/explainer.md
+group: progressive-web-app
+compat_features:
+  - html.elements.meta.name.application-title

features/meta-application-title.yml.dist

@@ -0,0 +1,8 @@
+# Generated from: meta-application-title.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
+compat_features:
+  - html.elements.meta.name.application-title

scripts/specs.ts

@@ -116,6 +116,10 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://github.com/tc39/proposal-regexp-legacy-features",
         "Allowed because it's the most spec-like thing that exists for discouraged RegExp static properties. Remove when https://github.com/tc39/ecma262/issues/137 is resolved."
+    ],
+    [
+        "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."
     ]
 ];