Programming WebRTC

Programmatically Recognizing Denied Media Permissions

Hard truth: when users, for whatever reason, deny your WebRTC app permission to access their mic or camera, there’s little you can do in response. Some users may accidentally hit the Block button in the permissions dialog, or dismiss it without having explicitly granted or denied permission. Browsers generally do not make it easy to unblock requested media permissions, and will often save that as a preference tied to your app’s domain.

Avoid the Permissions API

You may find yourself tempted to employ the Permissions API^[93] to do a quick check for whether users have granted your app access previously to their media devices.

However, the camera permissions value on the name property is not ...