Error fetching geojson when ES6 import is used

[archmoj]

codepen
See console error.

[archmoj]

Replacing this.XDomainRequest with self.XDomainRequest in d3-v3 fork appears to fix the problem.

[nicolaskruchten]

Is this to do with the changes we made to make things ES6-importable? Maybe there's a binding problem now?

[archmoj]

It does not look like a regression.
Only that right now everything is not E6 importable.

[archmoj]

I only see the error in choropleth when using test_dashboard that uses es6-import.