Support for D3.js?

I'm trying to add a d3js graph but it doesn't render. After adding the d3js library in the `<head>` and declaring a `<div>` for the graph I made an empty slide: 

```
<section>
  <script>
   <!-- d3js example here: https://www.d3-graph-gallery.com/graph/barplot_animation_start.html
  </script>
</section>
```

but the slide is empty. Any ideas?