Obtaining certificate chain for sfu.ca, one moment while we download the sfu.ca certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for sfu.ca, one moment while we re-check the sfu.ca certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for sfu.ca failed
Sorry, the request for sfu.ca could not be completed...
We could not load the certificate for sfu.ca, 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.