from http://google.com --> redirects to a url that sends "google.com..." referrer with search terms
from https://google.com --> redirects to a url that sends "google.com..." referrer with search term stripped
from https://encrypted.google.com --> sends blank referrer
from http://google.com --> redirects to a url that sends "google.com..." referrer with search terms
from https://google.com --> redirects to a url that sends "google.com..." referrer with search term stripped
from https://encrypted.google.com --> sends blank referrer