Ticket #39696: 39696.diff

src/wp-includes/rest-api/class-wp-rest-server.php

@@ -544 +544 @@
 
                 $embedded = array();
 
+                // Get link relationships to filter on.
+                $_embed = isset( $_GET['_embed'] ) ? array_filter( explode( ',', $_GET['_embed'] ) ) : false;
+                $filtered_rels = empty( $_embed ) ? false : $_embed;
+
                 foreach ( $data['_links'] as $rel => $links ) {
                         // Ignore links to self, for obvious reasons.
                         if ( 'self' === $rel ) {
                                 continue;
                         }
 
+                        // If filtered rels are specified and current $rel is not in the list, then continue.
+                        if ( false !== $filtered_rels && ! in_array( $rel, $filtered_rels, true ) ) {
+                                continue;
+                        }
+
                         $embeds = array();
 
                         foreach ( $links as $item ) {