That is by far the most reliable solution that I found. And I've looked for hours before deciding to use a jQuery plugin. 
In the version of the plugin that I am using, we can stick the header to a scrollable container.
Take a look at this plunker for a use case with ng-table:
http://plnkr.co/edit/ypBaDHIfaJWapXVs3jcU?p=preview
Javascript  
app.directive('fixedTableHeaders', ['$timeout', function($timeout) {
  return {
    restrict: 'A',
    link: function(scope, element, attrs) {
      $timeout(function() {
          var container = element.parentsUntil(attrs.fixedTableHeaders);
          element.stickyTableHeaders({ scrollableArea: container, "fixedOffset": 2 });
      }, 0);
    }
  }
}]);   
HTML  
<div id="scrollable-area">
      <table ng-table="tableParams" fixed-table-headers="scrollable-area">
        <tr ng-repeat="user in $data">
            <td data-title="'Name'">{{user.name}}</td>
            <td data-title="'Age'">{{user.age}}</td>
        </tr>
      </table>
</div>
CSS    
#scrollable-area {
    height: 150px;
    overflow-y: scroll; /* <-- here is what is important*/
}
table {
  width: 100%;
}
thead {
    background: #fff;
}