Cert is empty error

[tomalex0]

At times while connecting to ldap we are getting below error but not always.
"reason": "Cert is empty",

Can somebody help me identifying the actual cause

[tomalex0]

Further error trace

{ Error: Hostname/IP doesn't match certificate's altnames: "Cert is empty"
    at Object.checkServerIdentity (tls.js:199:17)
    at TLSSocket.<anonymous> (_tls_wrap.js:1091:29)
    at emitNone (events.js:86:13)
    at TLSSocket.emit (events.js:185:7)
    at TLSSocket._finishInit (_tls_wrap.js:603:8)
    at TLSWrap.ssl.onhandshakedone (_tls_wrap.js:433:38)

[tomalex0]

I used this tool to test out same flow and it was working fine
http://www.computerperformance.co.uk/w2k3/utilities/ldp.htm#Free

[akdor1154]

I think this is seen when the cert lacks a subject name (i.e. it only has SubjectAltName). This is perfectly valid as far as I am aware however it trips up something in this node-tls-ldapjs-activedirectory stack. Looking into it (as a user, not a dev).
EDIT: this is a node bug. nodejs/node#11771
similar libraries to this are working around it themselves: auth0/ad-ldap-connector@1f4dd2b