Hi,
this has nothing to do with the module. The reply is coming from your http
server.
In the first request you are sending a json body with "Content-Type:
application/x-www-form-urlencoded" while it should be "Content-Type:
application/json".
In the second request you are sending a totally different body.
You should check your webserver's logs.
Best regards,
Federico Cabiddu