Issue with kong with envoy proxy sidecar

Hi i am trying to enable envoy proxy in my cluster with Kong as api-gateway but making the peerauthentication as STRICT i am not able to access my UI.

Error:

didn’t accept your login certificate, or one may not have been provided.
Try contacting the system admin.
ERR_BAD_SSL_CLIENT_AUTH_CERT

I am also interested in knowing about this. did it work for you?