Add referrer policy header

templates/nginx.conf

@@ -24,6 +24,8 @@ http {
         # HTTPS for the next 2 years: (read more on hstspreload.org)
         add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
 
+        add_header Referrer-Policy "same-origin";
+
         location / {
             proxy_pass              http://peertube:9000;
             proxy_set_header        X-Real-IP $remote_addr;