Play DAH DRM-protected content

I have a streaming service already hosted remotely. The goal is to create an app container that with point to this app, I use an iframe to achieve this.

I’m able to load the app, navigate around the app, and play our HLS FAST channels. However, I’m unable to play ad-supported DASH content. this content is DRM-protected . I use videojs plugin to play videos.

Despite assign all permissions and policies, I get playback error: “The media playback was aborted due to a corruption problem or because the media used features your browser did not support.”