Issue #3494753 by anybody: Additionally track registration form HTTP_REFERER

...sistent_visitor_parameters_user_registration.settings.yml

...nfig/optional/views.view.user_registration_pvp_report.yml

...ersistent_visitor_parameters_user_registration.schema.yml

...n/persistent_visitor_parameters_user_registration.install

...on/persistent_visitor_parameters_user_registration.module

...or_parameters_user_registration/src/Form/SettingsForm.php