Just coming across this now, but since you seem to know a bit about this: can a tracker blocker prevent the preload requests from being sent in the first place,

Just coming across this now, but since you seem to know a bit about this: can a tracker blocker prevent the preload requests from being sent in the first place, or alternatively, is it the case that the preload requests do not allow whoever initially serves up that content to track who has been loading it?