Sub-menu is not opened when menu_toggle is collapsed

[prabowomurti]

How to reproduce the issue :

• Click the menu_toggle button.
• Click on any link or refresh the page.
• Click the menu_toggle button again. The nav menu is now expanded.
• Refresh the page or click on any link, that used by the nav menu to be active. For example : I have

['label' => 'All Events', 'url' => ['event/index'], 'active' => ($controller_name == 'event' && in_array($action_name, ['index', 'update', 'view', 'attendance']))],

but when I visit /event/update or /event/view, the sub-menu is not expanded / active.