Has anyone had success in integrating an external library like Angular or Knockout on a custom widget?  I am creating a repeatable html template so we can format the output.
I can get this to work on the index.html page of app builder:
*************************
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
 <div ng-app="" ng-init="names=['Jani','Hege','Kai']">
                <p>Looping with ng-repeat:</p>
                <div ng-repeat="x in names">
                    <p>
                        {{ x }} 
                    </p>
                </div>
</div>  
*************************
But, when I do the same thing in the widget.html, it ignores angular in html.  Even if the angular.js file gets loaded in the the index.html page.
Even a simple <script>Alert("hello");</script> will not work in the widget.html.
Any direction would be much appreciated!