Elasticsearch client fails to handshake with master

When we apply the istion auto injection to the elastic search, the elastic search client fails to join the master node : transport error says fails to handshake with mater node.

However the same thing works when deployed without side car proxy ?

Can you explain us why is the side car proxy casuing this behaviour

Can you share the detailed steps for reproducing the issue?

Elastic doc is recommending to disable istio, this is for their ECK operator but similar concept should apply to non eck installations