#885 add comment

src/environments/environment.common.ts

@@ -229,6 +229,9 @@ export const environment: GlobalConfig = {
   },
   // Whether the UI should rewrite file download URLs to match its domain. Only necessary to enable when running UI and REST API on separate domains
   rewriteDownloadUrls: false,
+  // Whether to enable media viewer for image and/or video Bitstreams (i.e. Bitstreams whose MIME type starts with "image" or "video").  
+  // For images, this enables a gallery viewer where you can zoom or page through images. 
+  // For videos, this enables embedded video streaming
   mediaViewer: {
     image: false,
     video: false,