Github user MikeThomsen commented on the issue:
https://github.com/apache/nifi/pull/2542
Should also mention that this is how I set it up per the Jira ticket:
<img width="792" alt="screen shot 2018-04-24 at 10 20 27 am"
src="https://user-images.githubusercontent.com/108184/39193271-26aaf70c-47a9-11e8-8a5b-ddf10652005f.png">---
