Dynamic dropdown error in EDIT mode

Hi,

I am using multiple dynamic dropdown from this example: http://itsolutionstuff.com/post/how-to-make-simple-dependent-dropdown-using-jquery-ajax-in-laravel-5example.html

I have 3 dropdowns in total, dependent on each other. It works good for the new user creation, with dropdown's link to each other working fine. But it does not work with the EDIT mode, the 2nd and 3rd fields remain empty. I understand that they are waiting for onchange element trigger from first dropdown, but they should at least show the default saved entry!

I am using FORM FACADE. Has someone worked on such issue? Please do share.

Many thanks! Saad