InvokeHttp 'x-www-form-urlencoded' POST doesn't work on NiFi 1.21.0

[#1]

Hi, 

Complementing the title, it doesn't work on NiFi 1.21 but it does work on NiFi 2.0.0-M1

I have created a simple test:

Generate FlowFile: 

InvokeHttp:

The response is an error from my server which seems to be rejecting the content:

"The requested URL was rejected. Please consult with your administrator."

To debug it I have downloaded the 2.0.0-M1 version locally on my machine and configured the exact same flow and it ran without any problem.

@steven-matison 

[#2]

@Alfies Thanks for posting.   I cant see anything that jumps as far as why this would not work in 1.21.   I would wonder if it works in 1.24.    If it does, then for sure that compatiblity was added since 1.21.   If you are required to use 1.21,  i would recommend opening a Jira to report the bug you are describing.