The 'OCSPResponse'
event is emitted if the requestOCSP
option was set
when the tls.TLSSocket
was created and an OCSP response has been received.
The listener callback is passed a single argument when called:
response
{Buffer} The server’s OCSP response
Typically, the response
is a digitally signed object from the server’s CA that
contains information about server’s certificate revocation status.