x509.issuerCertificate
颁发者证书或 undefined
(如果颁发者证书不可用)。
- Type: <X509Certificate>
The issuer certificate or undefined
if the issuer certificate is not
available.
颁发者证书或 undefined
(如果颁发者证书不可用)。
The issuer certificate or undefined
if the issuer certificate is not
available.