Check HDCP version for a key system in browser.
npm i --save-dev hdcp
import { canDetectHdcpVersion, checkHdcpVersion, checkAllHdcpVersions } from 'hdcp';
console.log('Can detect HDCP version: ', canDetectHdcpVersion());
const status = await checkHdcpVersion('com.widevine.alpha', '1.0');
console.log('checkHdcpVersion: ', status);
const allVersions = await checkAllHdcpVersions('com.microsoft.playready.recommendation');
console.log('checkAllHdcpVersions: ', allVersions);