You could also make use of Rails helpers here to make things slightly more concise:

```erb
<!--[if gt IE 9]><!-->
  <%= javascript_include_tag 'http://cdnjs.cloudflare.com/ajax/libs/html-inspector/0.7.0/html-inspector.js' %>
  <%= javascript_tag 'HTMLInspector.inspect()' %>
<!--<![endif]-->
```