unable to identify proxy for host

[viswajay]

What could be causing this issue

`{ "fault": { "detail": { "errorcode": "messaging.adaptors.http.flow.ApplicationNotFound" }, "faultstring": "Unable to identify proxy for host: ieproxy.alibaba.com:9443 and url: /oauth" } }`

There is no virtual host defined by the name "ieproxy.alibaba.com".

Is this some thing to do with SNI/non-SNI resolution. One thing I know is API Consumer is using some proxy.