Content-Type application/x-www-form-urlencoded not supported

[marcocast]

WebHook does not support form based request making impossible to use it to login in the scheduler. This is important as it force tasks to use different libraries only to login and use the webhook only for normal json requests.

org.apache.http.client.fluent.Request : API

See example 1 and example 2 for example on how to handle form requests.