Ticket #29114: 29114.patch

src/wp-admin/includes/ajax-actions.php

@@ -2719 +2719 @@
 
         ob_start();
 
+        $shortcode = do_shortcode( wp_unslash( $_REQUEST['shortcode'] ) );
+
+        if ( empty( $shortcode ) ) {
+                wp_send_json_error( array( 'statusText' => __( 'No items found.' ) ) );
+        }
+
         $styles = wp_media_mce_styles();
         foreach ( $styles as $style ) {
                 printf( '<link rel="stylesheet" href="%s"/>', $style );
         }
 
-        echo do_shortcode( wp_unslash( $_REQUEST['shortcode'] ) );
+        echo $shortcode;
 
         if ( ! empty( $wp_scripts ) ) {
                 $wp_scripts->done = array();