ng-repeat is binding same array with multiple times.
js :
$scope.currentitem = item;
$scope.currentitemCategory = $scope.currentitem.category.split(',');
console.log($scope.currentitemCategory);
html:
<div ng-repeat="category in currentitemCategory track by $index">
<a href="/content/digital-library/us/en/search.html?category={{category}}">
<span class="text"> {{category}} </span>
</a>
</div>
console :
Categorized in audience/business audience/business audience/business brandguidelines brandguidelines brandguidelines corporateinitiatives/idf corporateinitiatives/idf corporateinitiatives/idf