I'm trying to use x-ray on Meteor but so far with no luck.

Here's the example I'm testing (it works fine on a basic node app)

```
import Xray from 'x-ray';

var xray = new Xray();

xray('http://reddit.com/r/meteor/', '.title',
[{
  title: '',
  href: '@href'
}]
)
  .write('./result.json');

```