iron-selector is not correcly imported using this cdn link

[sapienza88]

<base href="https://cdn.rawgit.com/download/polymer-cdn/1.8.0/lib/">

<script src="webcomponentsjs/webcomponents-lite.js"></script>

 <iron-selector class="iron-selector" selected="0">
  <div>Item 1</div>
  <div>Item 2</div>
  <div>Item 3</div>
</iron-selector>

Will display nothing. Thanks for checking this.