A new security header: Feature Policy
Scott Helme, creator of both securityheaders.com and report-uri.com introduces a header to enable or disable certain APIs on a webpage.
Feature Policy is being created to allow site owners to enable and disable certain web platform features on their own pages and those they embed. Being able to restrict the features your site can use is really nice but being able to restrict features that sites you embed can use is an even better protection to have.
Read more [scotthelme.co.uk]