Couldn't connect to minio when proxy configured in linux

I could connect to minio with duplicati-cli normally but couldn’t connect when proxy (http_proxy with IP,PORT, with and without Username,Password) configured in linux machine.

Here is the duplicati command(Version: -
duplicati-cli test ‘s3://testbucket?s3-server-name=’

Getting following error:
Fatal error => Error making request with Error Code ProxyAuthenticationRequired and Http Status Code ProxyAuthenticationRequired. No further error information was returned by the service.

Options tried:

Is there any possibility to connect via proxy? Anything wrong from my end?