JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app ng-controller="LoginController">
    <div>Trying to load {{ customUrl }}</div>
    <div><iframe ng-src="{{customUrl}}" height="480" width="640"></iframe></div>
</div>

JavaScript

function LoginController($scope, $sce) {
    $scope.customUrl = $sce.trustAsResourceUrl('http://www.cnn.com');
    
}