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