Obtaining certificate chain for tropicalis.berkeley.edu, one moment while we download the tropicalis.berkeley.edu certificate and related intermediate certificates...
Revocation check via OCSP and CRL for tropicalis.berkeley.edu failed
Sorry, the request for tropicalis.berkeley.edu could not be completed...
We could not load the certificate for tropicalis.berkeley.edu, it might not exist or we could not reach the server, complete the TLS handshake, etc.
Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers and expose a security risk.