Github user MikeThomsen commented on the issue:
https://github.com/apache/nifi/pull/2443
@mattyb149 I broke the query location unit test down into three distinct
cases:
* Verify that an empty query w/ no flowfile defaults to timer-driven
behavior with `{}` as the query.
* Verify that a query param will work when set.
* Verify that it can read from the body w/ EL support.---
