angular strict

index.html

<div ng-app='app' ng-strict-di>
  <ng-view></ng-view>
</div>

invalid.js

(function() { 
  angular.module('app').controllers(function($log) {
    $log.log('this is invalid');
  })
})();

valid.js

(function() { 
  angular.module('app').controllers(['$log', function(log) {
    $log.log('this is valid');
  }])
})();