Display Loading instead of No Data Available

leog7

I am using https://l-lin.github.io/angular-datatables everything works fin except instead of displaying loading when large data is fetched it shows no data available, I tried the code at https://l-lin.github.io/angular-datatables/#/overrideLoadingTpl but no luck.

My code is at https://github.com/Leo-G/Flask-Scaffold/blob/develop/app/templates/static/js/app.js and index.html is at https://github.com/Leo-G/Flask-Scaffold/blob/develop/app/templates/users/index.html and controller code at https://github.com/Leo-G/Flask-Scaffold/blob/develop/app/templates/users/controllers.js