I'm pretty sure it's correct. Browsers specifically block sending HTTPS referrer...

		othermaciej on Jan 24, 2011 \| parent \| context \| favorite \| on: Search leakage is not FUD. Google et al., please f... I'm pretty sure it's correct. Browsers specifically block sending HTTPS referrers to HTTP sites, but not HTTPS to HTTPS. So using HTTPS mode wouldn't stop sending referrers to HTTPS sites unless Google has a referrer-avoidance mechanism on the results page itself.