The feature policy has now been renamed to Permissions-Policy
in web.config:
<add name="Feature-Policy" value="accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment *; usb 'none'" />Should now be:
<add name="Permissions-Policy" value="accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment *; usb 'none'" />Source
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Feature-Policy
Spec
https://w3c.github.io/webappsec-permissions-policy/
