Proxy modules

src/wp-includes/js/esm-proxy/a11y.esm.js

@@ -0,0 +1,6 @@
+if ( ! Object.hasOwn( globalThis, 'wp' ) || ! Object.hasOwn( globalThis.wp, 'a11y' ) ) {
+	throw new Error( `Script dependency not found, missing: \`wp.a11y\`` );
+}
+
+export const setup = globalThis['wp']['a11y']['setup'];
+export const speak = globalThis['wp']['a11y']['speak'];

src/wp-includes/js/esm-proxy/api-fetch.esm.js

@@ -0,0 +1,5 @@
+if ( ! Object.hasOwn( globalThis, 'wp' ) || ! Object.hasOwn( globalThis.wp, 'apiFetch' ) ) {
+	throw new Error( `Script dependency not found, missing: \`wp.apiFetch\`` );
+}
+
+export default globalThis['wp']['apiFetch'];

src/wp-includes/js/esm-proxy/blob.esm.js

@@ -0,0 +1,10 @@
+if ( ! Object.hasOwn( globalThis, 'wp' ) || ! Object.hasOwn( globalThis.wp, 'blob' ) ) {
+	throw new Error( `Script dependency not found, missing: \`wp.blob\`` );
+}
+
+export const createBlobURL = globalThis['wp']['blob'].createBlobURL;
+export const downloadBlob = globalThis['wp']['blob'].downloadBlob;
+export const getBlobByURL = globalThis['wp']['blob'].getBlobByURL;
+export const getBlobTypeByURL = globalThis['wp']['blob'].getBlobTypeByURL;
+export const isBlobURL = globalThis['wp']['blob'].isBlobURL;
+export const revokeBlobURL = globalThis['wp']['blob'].revokeBlobURL;

src/wp-includes/script-modules.php

@@ -123,3 +123,22 @@ function wp_dequeue_script_module( string $id ) {
 function wp_deregister_script_module( string $id ) {
 	wp_script_modules()->deregister( $id );
 }
+
+add_action( 'init', function () {
+	$base   = includes_url( 'js/esm-proxy/' );
+	$suffix = '.esm.js';
+
+	$script_script_modules = array(
+		'api-fetch',
+		'a11y',
+		'blob',
+	);
+
+	foreach ( $script_script_modules as $handle ) {
+		wp_register_script_module(
+			'@wordpress/' . $handle,
+			$base . $handle . $suffix,
+			array( array( 'id' => 'wp-' . $handle, 'import' => 'wp-script' ) ),
+		);
+	}
+} );