Chrome 85 will restrict browser referrer information

In referrer data, Permalink (full path) information will be stripped down to domain name (origin) by default in Chrome 85 for HTTPS url.

Right now

Chrome 85

Incase you still want to pass for other sites, you can use below header in your server.

Referrer-Policy: unsafe-url

This will allow affiliate partner to understand better from which source you are giving them traffic.