Github user mcgilman commented on the issue:
https://github.com/apache/nifi/pull/1697
@YolandaMDavis I've added another commit [1] to print the response body
when possible. If your happy with this addition, I'll amend it to your PR.
Thanks.
[1]
https://github.com/mcgilman/nifi/commit/549a50fe22c930ab9c3203376da51b266f82585a
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