Read the full story https://www.w3.org/blog/news/archives/6087?pk_campaign=feed&pk_kwd=w3c-invites-implementations-of-referrer-policy
The Web Application Security Working Group invites implementations of the Candidate Recommendation of Referrer Policy. This specification describes how Web authors can set a referrer policy for documents they create, and describes the impact on the Referer HTTP header for outgoing requests and navigations.