static isBrowserSupported() {
    const basic =
        !!window.MediaKeys &&
        !!window.navigator &&
        !!window.navigator.requestMediaKeySystemAccess &&
        !!window.MediaKeySystemAccess &&
        // eslint-disable-next-line no-restricted-syntax
        !!window.MediaKeySystemAccess.prototype.getConfiguration;

    return basic;
  }
Returns true if the browser has recent EME APIs.

@return {boolean}