The speaker policy controls access to audio output devices requested through the NavigatorUserMedia interface.
If disallowed in a document, then calls to
MUST NOT grant access to audio output devices in that document.
How to apply this policy
Send the following HTTP header to control the
speaker policy, and disallow
it on all origins:
Feature-Policy: speaker 'none'
Does it work?
Currently Firefox, and Chromium based browsers, such as Google Chrome, Samsung Internet,
and Opera, are the only user-agents to support Feature Policy. The minimum version that
correctly recognises the
speaker policy is: