Bootstrap 3 multi level dropdown menu not working on mobile devices. I checked many solution in StackOverflow. That solution for Desktop not for mobile. Below is the best solutions for multi lebel dropdown menu.
Bootstrap 3 dropdown sub menu missing
https://github.com/djokodonev/bootstrap-multilevel-dropdown
$('ul.dropdown-menu [data-toggle=dropdown]').on('click', function(event) {
  // Avoid following the href location when clicking
  event.preventDefault();
  // Avoid having the menu to close when clicking
  event.stopPropagation();
  // If a menu is already open we close it
  $('ul.dropdown-menu [data-toggle=dropdown]').parent().removeClass('open');
  // opening the one you clicked on
  $(this).parent().addClass('open');
});
Above code is working well for desktop.
Live example: http://rahulmoral.com/portfolio/essanet/
Please view on mobile devices. Second level dropdown-menu will not work on mobile devices.
 
     
     
    