Select a policy to begin.
Feature Policy allows web developers to selectively enable, disable, and modify the behavior of various features and APIs in the browser. This can provide a well-lit path towards good performance and prevent common footguns when building and maintaining web apps.
Feature policy is not supported in your browser. Try Chrome Canary and enable the --enable-experimental-web-platform-features
flag.
You control feature policies through an HTTP header:
Feature-Policy: geolocation * Feature-Policy: geolocation 'none' Feature-Policy: geolocation 'self' Feature-Policy: geolocation https://google-developers.appspot.com
or by adding the allow
attribute on iframes:
<iframe allow="geolocation"> <iframe allow="geolocation 'self'"> <iframe allow="geolocation 'none'"> <iframe allow="geolocation https://google-developers.appspot.com">