Is this related to the wiping of referrer data when using the Pretty URL asset optimization? I noticed today that document.referrer is empty when navigating to a url without a trailing slash that is then redirected to the same url with a trailing slash. This is concerning since this means our referrer analytics data has been affected for the 6 mos we’ve had this optimization enabled. If this is intended behavior it would be useful to document that somewhere (or maybe it is and I missed it).