Restore: Sync Gutenberg @ e7b8c0c8a34bd62374ebf6f9cbfdeab4f822234c

See changelog in aaafdc0

Author: dmsnell

src/wp-admin/options-connectors.php

@@ -20,7 +20,7 @@
 
 if ( ! class_exists( '\WordPress\AiClient\AiClient' ) || ! function_exists( 'wp_options_connectors_wp_admin_render_page' ) ) {
 	wp_die(
-		'<h1>' . __( 'Connectors is not available.' ) . '</h1>' .
+		'<h1>' . __( 'Connectors are not available.' ) . '</h1>' .
 		'<p>' . __( 'The Connectors page requires build files. Please run <code>npm install</code> to build the necessary files.' ) . '</p>',
 		503
 	);

src/wp-includes/assets/script-loader-packages.min.php

@@ -100,7 +100,7 @@
       'wp-url',
       'wp-warning'
     ),
-    'version' => '5140a363580d1c7cd43c'
+    'version' => '7d8ba03c46a31976363c'
   ),
   'block-library.min.js' => array(
     'dependencies' => array(
@@ -848,7 +848,7 @@
         'import' => 'dynamic'
       )
     ),
-    'version' => '7e012a6701be0a6ad8f3'
+    'version' => '2dac6787d62a1c93f85e'
   ),
   'url.min.js' => array(
     'dependencies' => array(

src/wp-includes/media.php

@@ -6393,6 +6393,12 @@ function wp_set_client_side_media_processing_flag(): void {
 
 	wp_add_inline_script( 'wp-block-editor', 'window.__clientSideMediaProcessing = true', 'before' );
 
+	$chromium_version = wp_get_chromium_major_version();
+
+	if ( null !== $chromium_version && $chromium_version >= 137 ) {
+		wp_add_inline_script( 'wp-block-editor', 'window.__documentIsolationPolicy = true;', 'before' );
+	}
+
 	/*
 	 * Register the @wordpress/vips/worker script module as a dynamic dependency
 	 * of the wp-upload-media classic script. This ensures it is included in the
@@ -6405,15 +6411,33 @@ function wp_set_client_side_media_processing_flag(): void {
 	);
 }
 
+/**
+ * Returns the major Chrome/Chromium version from the current request's User-Agent.
+ *
+ * Matches all Chromium-based browsers (Chrome, Edge, Opera, Brave).
+ *
+ * @since 7.0.0
+ *
+ * @return int|null The major Chrome version, or null if not a Chromium browser.
+ */
+function wp_get_chromium_major_version(): ?int {
+	if ( empty( $_SERVER['HTTP_USER_AGENT'] ) ) {
+		return null;
+	}
+	if ( preg_match( '#Chrome/(\d+)#', $_SERVER['HTTP_USER_AGENT'], $matches ) ) {
+		return (int) $matches[1];
+	}
+	return null;
+}
+
 /**
  * Enables cross-origin isolation in the block editor.
  *
  * Required for enabling SharedArrayBuffer for WebAssembly-based
- * media processing in the editor.
+ * media processing in the editor. Uses Document-Isolation-Policy
+ * on supported browsers (Chromium 137+).
  *
  * @since 7.0.0
- *
- * @link https://web.dev/coop-coep/
  */
 function wp_set_up_cross_origin_isolation(): void {
 	if ( ! wp_is_client_side_media_processing_enabled() ) {
@@ -6439,26 +6463,22 @@ function wp_set_up_cross_origin_isolation(): void {
 }
 
 /**
- * Starts an output buffer to send cross-origin isolation headers.
+ * Sends the Document-Isolation-Policy header for cross-origin isolation.
  *
- * Sends headers and uses an output buffer to add crossorigin="anonymous"
- * attributes where needed.
+ * Uses an output buffer to add crossorigin="anonymous" where needed.
  *
  * @since 7.0.0
- *
- * @link https://web.dev/coop-coep/
- *
- * @global bool $is_safari
  */
 function wp_start_cross_origin_isolation_output_buffer(): void {
-	global $is_safari;
+	$chromium_version = wp_get_chromium_major_version();
 
-	$coep = $is_safari ? 'require-corp' : 'credentialless';
+	if ( null === $chromium_version || $chromium_version < 137 ) {
+		return;
+	}
 
 	ob_start(
-		static function ( string $output ) use ( $coep ): string {
-			header( 'Cross-Origin-Opener-Policy: same-origin' );
-			header( "Cross-Origin-Embedder-Policy: $coep" );
+		static function ( string $output ): string {
+			header( 'Document-Isolation-Policy: isolate-and-credentialless' );
 
 			return wp_add_crossorigin_attributes( $output );
 		}