diff -r c7c34916027a -r 177826044cd9 wp/wp-admin/network/update.php
--- a/wp/wp-admin/network/update.php	Mon Oct 14 18:06:33 2019 +0200
+++ b/wp/wp-admin/network/update.php	Mon Oct 14 18:28:13 2019 +0200
@@ -7,8 +7,9 @@
  * @since 3.1.0
  */
 
-if ( isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'update-selected', 'activate-plugin', 'update-selected-themes' ) ) )
+if ( isset( $_GET['action'] ) && in_array( $_GET['action'], array( 'update-selected', 'activate-plugin', 'update-selected-themes' ) ) ) {
 	define( 'IFRAME_REQUEST', true );
+}
 
 /** Load WordPress Administration Bootstrap */
 require_once( dirname( __FILE__ ) . '/admin.php' );