Inherited from Serializable
Inherited by implicit conversion any2stringadd from
Referer to any2stringadd[Referer]
Inherited by implicit conversion StringFormat from
Referer to StringFormat[Referer]
Inherited by implicit conversion Ensuring from
Referer to Ensuring[Referer]
Inherited by implicit conversion ArrowAssoc from
Referer to ArrowAssoc[Referer]
RFC 7231 5.5.2
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referer