Problem with chunked responses on Heroku

After upgrading the RESTGateway to use the latest version of Celluloid, Celluloid-IO, and Reel, there seems to be an issue when deploying to Heroku.

We are sending back a chunked response but Heroku seems to be closing the connection too early before receiving all of the data back. I've submitted an issue with Heroku and will continue to see if it's something on our end.