Thanks for the feedback! This is the first time that we hear about this concern, but we will look into it. Serving these kinds of resources (fonts, icons) ourselves has a disadvantage in terms of caching, so we'll have to decide if it's worth the trade-off.
It's not that I haven't heard about leaking traffic to third parties before. What I meant is that so far none of our users have complained about this being a concern for them.
