Host property on HttpRequestCreator.Proxy throws ArgumentException when host assigned contains "https"

Hi,

When I assign "https://xxx.xx.xx.x:809" to host property on HttpRequestCreator.Proxy, it throws "System.ArgumentException: Hostname is invalid. Parameter name: value"

If I assign just plain HTTP url, it works fine. So, issue is only when I assign URL that has HTTPS.

Could you please help me on this?

Thanks,

Ajay