I’ve been testing out your docker image aspose/words-cloud and it looks like commit 729390d broke authentication with self-hosted containers.
AsposeWordsCloud::ApiError (Forbidden): …...path still works: $ curl -v 'http://192.168.1.198:8080/connect/token'...8080 (#0) > POST /connect/token HTTP/1.1 > Host: 192.168.1.198:8080...