title: Can browser Content Decryption Module (CDM) version be detected using JavaScript?
body: <p>I want to get the version of CDMs supported by browsers. They are added as components/addons and each browser has a way to check these:</p>
  <p><strong>Chrome - chrome://components/</strong></p>
  <p><a href="https://i.stack.imgur.com/ELfGc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ELfGc.png" alt="Chrome components CDM" /></a></p>
  <p><strong>Firefox - about:addons</strong></p>
  <p><a href="https://i.stack.imgur.com/U2iSy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/U2iSy.png" alt="Firefox addons CDM" /></a></p>
  <p>Is there a way these can be detected using javascript in a normal tab?</p>