Ticket #38631: 38631.1.diff

src/wp-includes/rest-api/endpoints/class-wp-rest-taxonomies-controller.php

@@ -279 +279 @@
                                 'types'            => array(
                                         'description'  => __( 'Types associated with resource.' ),
                                         'type'         => 'array',
+                                        'items'        => array(
+                                                'type' => 'string',
+                                        ),
                                         'context'      => array( 'view', 'edit' ),
                                         'readonly'     => true,
                                 ),