Cross-site Referrer Leakage through usage of origin-when-cross-origin in Referrer-Policy
Invicti detected that origin leakage is possible due to the usage of
Origin (Domain) information can be leaked through the
Referer header, if a request is made to a cross-site.
If leakage of the origin is a problem for the site, see all available options by using links in External References and use a one suits your need.