Waiting on an installed meteor package

[philipobrien]

I am using the imsky:holder package as follows

<div class="col-xs-6 col-sm-4 placeholder">
  <img data-src="holder.js/200x200/auto/sky" class="img-responsive" alt="Generic placeholder thumbnail">
  <h4 class="text-muted">Number of Producers</h4>
  <span class="text-muted">3292</span>
</div>

but sometimes the placholders fail to load before the page is rendered, resulting in the alt text being displayed. Can I use your package to wait on holder.js? I have tried with this config but it just gets caught waiting, nothing happens

Router.route('/', {
    name: 'dashboard',
    waitOn: function(){
        return [IRLibLoader.load('holder.js')]
    } 
});