Ticket #38397: 38397.2.patch

src/wp-content/themes/twentyseventeen/assets/js/navigation.js

@@ -27 +27 @@
                 container.find( '.current-menu-ancestor > .sub-menu' ).addClass( 'toggled-on' );
 
                 // Add menu items with submenus to aria-haspopup="true".
-                container.find( '.menu-item-has-children, .page_item_has_children' ).attr( 'aria-haspopup', 'true' );
+                container.find( '.menu-item-has-children > a, .page_item_has_children > a' ).attr( 'aria-haspopup', 'true' );
 
                 container.find( '.dropdown-toggle' ).click( function( e ) {
                         var _this            = $( this ),