Playing DRMToday / Castlabs protected content with the Roku Player SDK

DRMtoday/Castlabs use a custom, proprietary implementation per default, which is unsupported on Roku. However, by appending ?specConform=true to the Widevine license server URL the license server will confirm to the Widevine specification, for example https://lic.staging.drmtoday.com/license-proxy-widevine/cenc/?specConform=true

m.bitmovinPlayer.load({
  dash: "DASH_MANIFEST_URL",
  drm: {
    widevine: {
    	LA_URL: "WIDEVINE_LICENSE_SERVER_URL?specConform=true"
    },
    headers: {
      "x-dt-custom-data": "BASE64_ENCODED_CUSTOMDATA"
    }
  }
})