Scripts in html blocks

Hi all,

I'm having trouble implementing a widget into an HTML block.

<script type="text/javascript" src="//cdn.playbuzz.com/widget/feed.js"></script>
<div class="pb_feed" data-embed-by="165ab67b-cb65-4210-808c-b0927e1b7e82" data-game="/timcqb10/valentines-day-rom-com-quotes-quiz"></div>

When I publish it, it's stripped down to:

<script src="//cdn.playbuzz.com/widget/feed.js" type="text/javascript"></script>

Any ideas? Do I need to contain it in something additional?

Thanks,

Tim