When testing this in Chrome 83.0.4103.61 (Ubuntu 20.04), I get an error from Fido.NET saying the certificate is invalid, looking into this further it does appear to be expired in 2017.
Certificate:
Data:
Version: 3 (0x2)
Serial Number: 1 (0x1)
Signature Algorithm: sha256WithRSAEncryption
Issuer: C = US, O = Chromium, OU = Authenticator Attestation, CN = Batch Certificate
Validity
Not Before: Jul 14 02:40:00 2017 GMT
Not After : Jul 14 02:40:00 2017 GMT
Subject: C = US, O = Chromium, OU = Authenticator Attestation, CN = Batch Certificate
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit)
pub:
04:8d:61:7e:65:c9:50:8e:64:bc:c5:67:3a:c8:2a:
67:99:da:3c:14:46:68:2c:25:8c:46:3f:ff:df:58:
df:d2:fa:3e:6c:37:8b:53:d7:95:c4:a4:df:fb:41:
99:ed:d7:86:2f:23:ab:af:02:03:b4:b8:91:1b:a0:
56:99:94:e1:01
ASN1 OID: prime256v1
NIST CURVE: P-256
X509v3 extensions:
1.3.6.1.4.1.45724.2.1.1:
...
Signature Algorithm: sha256WithRSAEncryption
30:45:02:21:00:95:8c:4e:49:0f:4c:ff:18:ec:97:8a:07:4c:
a0:d3:5e:78:81:69:e6:b7:69:c7:6f:32:bd:df:e7:ab:6e:6b:
6b:02:20:1c:3a:4a:f3:d4:06:16:b0:67:1b:89:9b:4b:a7:c0:
53:e0:81:9e:49:12:df:b3:33:0b:04:77:40:84:04:58:0d
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----