Obtaining certificate chain for eecs280labster.eecs.umich.edu, one moment while we download the eecs280labster.eecs.umich.edu certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for eecs280labster.eecs.umich.edu failed
Sorry, the request for eecs280labster.eecs.umich.edu could not be completed...
We could not load the certificate for eecs280labster.eecs.umich.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.