Ember Fastboot redirect to external URL

I'm looking to 301 redirect to an external URL from within an Ember Route in Fastboot (based on the data returned by model()).

A solution, would be to access Express.js response object from within Ember, so I can call something like:

res.redirect(301, 'http://external-domain.com')?

However, I'm not entirely sure how res object can be accessed from within Ember. Fastboot exposes a response object, but it's not the same as the Express res.