[gk1]

Thanks for that detailed explanation. I learned something new.

Do you know if it's the same case if the referrer link is HTTP->HTTPS?

[yahelc]

No, the only problem case is HTTPS->HTTP.

Default behaviors:

HTTP->HTTP: Referrer

HTTP->HTTPS: Referrer

HTTPS->HTTPS: Referrer

HTTPS->HTTP: No Referrer :(