MediaKeySystemAccess
This EncryptedMediaExtensions API interface provides access to a Key System for decryption and/or a content protection provider. You can request an instance of this object using the Navigator.requestMediaKeySystemAccess method. Available only in secure contexts.
interface MediaKeySystemAccess {
readonly keySystem: string;
createMediaKeys(): Promise<MediaKeys>;
getConfiguration(): MediaKeySystemConfiguration;
}var MediaKeySystemAccess: {
prototype: MediaKeySystemAccess;
new (): MediaKeySystemAccess;
};