Allows web developers selectively enable and disable specific web technologies, especially those that enable two-way communication between the user and web application. For example, the header may inform the user mobile device that the website is not using camera or location tracking by design.

Reference...

We have seen 159 websites setting the Feature-Policy HTTP header and 106 unique values of this header.

  • www.theguardian.com camera 'none'; microphone 'none'; midi 'none'
  • stackoverflow.com microphone 'none'; speaker 'none'
  • jda.com camera 'none'; magnetometer 'none'; microphone 'none'; usb 'none'
  • jane.com accelerometer 'none'; ambient-light-sensor 'none'; animations 'self'; autoplay 'none'; camera 'none'; document-write 'self'; encrypted-media 'none'; fullscreen 'self'; geolocation 'none'; gyroscope 'none'; image-compression 'self'; legacy-image-formats 'self'; magnetometer 'none'; max-downscaling-image 'self'; microphone 'none'; midi 'none'; payment 'none'; picture-in-picture 'none'; speaker 'none'; sync-xhr 'self'; unsized-media 'self'; usb 'none'; vertical-scroll 'self'; vibrate 'none'; vr 'none';
  • mailbox.org accelerometer 'none'; camera 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; usb 'none';
  • www.guardian.co.uk camera 'none'; microphone 'none'; midi 'none'
  • scotthelme.co.uk accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
  • webcookies.org accelerometer 'none'; ambient-light-sensor 'none'; autoplay 'none'; camera 'none'; encrypted-media 'none'; fullscreen 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; midi 'none'; payment 'none'; picture-in-picture 'none'; speaker 'none'; sync-xhr 'none'; usb 'none'; vr 'none'
  • eway.io autoplay *; fullscreen *
  • secure.insightexpressai.com accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
  • airvpn.org autoplay 'none'; camera 'none'; encrypted-media 'none'; fullscreen 'self'; geolocation 'none'; microphone 'none'; magnetometer 'none'; midi 'none'; payment 'none'; speaker 'self'; sync-xhr 'self'; vr 'none';
  • www.firma-cerny.cz sync-xhr *
  • www.hosteurope.de geolocation 'self'; midi 'self'; payment 'self'; camera 'self'; usb 'self'; fullscreen 'self'; magnetometer 'self'; picture-in-picture *; accelerometer 'self'; vr 'self'; encrypted-media 'self'; autoplay 'self'; speaker 'self'; ambient-light-sensor 'self'; gyroscope 'self'; sync-xhr 'self'; microphone 'self'
  • gazeteyenigun.com.tr accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
  • depoauto.sk accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
  • dehaagsehogeschool.nl geolocation 'self'; fullscreen 'self'
  • cock.li camera 'none'
  • zeit.co fullscreen 'self';camera 'none'
  • www.cylance.com geolocation 'none';midi 'none';sync-xhr *;microphone 'none';camera 'none';magnetometer 'none';gyroscope 'none';speaker *;fullscreen *;payment 'none';
  • videopal.me autoplay *
  • www.rainvac.com vibrate 'self'; microphone 'none'; payment 'none'; sync-xhr 'self' https://rainvac.freetls.fastly.net
  • www.way2web.nl geolocation 'self'; midi 'self'; sync-xhr 'self'; microphone 'self'; camera 'self'; magnetometer 'self'; gyroscope 'self'; speaker 'self'; fullscreen 'self'; payment 'self'
  • www.syncasso.nl geolocation 'self'; midi 'self'; sync-xhr 'self'; microphone 'self'; camera 'self'; magnetometer 'self'; gyroscope 'self'; speaker 'self'; fullscreen 'self'; payment 'self'
  • www.maxmind.com accelerometer 'none'; ambient-light-sensor 'none'; autoplay 'none'; camera 'none'; encrypted-media 'none'; fullscreen 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; midi 'none'; payment 'none'; picture-in-picture 'none'; speaker 'none'; usb 'none'; vr 'none'; sync-xhr 'none'
  • www.gazeteyenigun.com.tr accelerometer 'none'; camera 'none'; geolocation 'none'; gyroscope 'none'; magnetometer 'none'; microphone 'none'; payment 'none'; usb 'none'
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