Ticket #37011: 37011.4.diff

src/wp-includes/general-template.php

@@ -965 +965 @@
                         'class' => 'custom-logo',
                 );
 
-                /*
-                 * If the logo alt attribute is empty, get the site title and explicitly pass it
-                 * to the attributes used by wp_get_attachment_image().
-                 */
-                $image_alt = get_post_meta( $custom_logo_id, '_wp_attachment_image_alt', true );
-                if ( empty( $image_alt ) ) {
-                        $custom_logo_attr['alt'] = get_bloginfo( 'name', 'display' );
+                if ( is_front_page() ) {
+                        /*
+                         * If on the home page, set the logo alt attribute to an empty string,
+                         * as the image is decorative and doesn't need its purpose to be described.
+                         */
+                        $custom_logo_attr['alt'] = '';
+                } else {
+                        /*
+                         * If the logo alt attribute is empty, get the site title and explicitly pass it
+                         * to the attributes used by wp_get_attachment_image().
+                         */
+                        $image_alt = get_post_meta( $custom_logo_id, '_wp_attachment_image_alt', true );
+                        if ( empty( $image_alt ) ) {
+                                $custom_logo_attr['alt'] = get_bloginfo( 'name', 'display' );
+                        }
                 }
 
                 /*