Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The setServerCertificate() method of the MediaKeys interface provides a server certificate to be used to encrypt messages to the license server.
setServerCertificate(serverCertificate)serverCertificateAn ArrayBuffer, a TypedArray, or a DataView object containing the server certificate. The contents are Key System-specific. It MUST NOT contain executable code.
A Promise that resolves to a boolean. If the Key System implementation represented by this object's content decryption module's implementation value does not support server certificates, return a promise resolved with false.