How can i play DRM protected video in electron js desktop app

Question

I have embedded Iframe with source containing video url. BUt I am getting error :

ERROR: (CODE:5 MEDIA_ERR_ENCRYPTED) requestMediaKeySystemAccess is disabled by feature policy.

and sometime i get

code: 6001, type: "REQUESTED_KEY_SYSTEM_CONFIG_UNAVAILABLE", headline: "DRM: REQUESTED_KEY_SYSTEM_CONFIG_UNAVAILABLE", message: ""}