It was explicitly designed to do that. HTML is explicitly designed to allow content from multiple places; it is designed to do so. Your browser is designed to r

It was explicitly designed to do that. HTML is explicitly designed to allow content from multiple places; it is designed to do so. Your browser is designed to read that HTML and fetch those resources to render the page. The internet is designed to cache that content. Your browser cache is designed to cache that content so future fetch requests are faster. There's so many pieces explicitely designed to do this, for exactly this reason, that there is no question as to this being the intended behavior. Font servers are decades old. CSS added support for it in 1998, replacing earlier less common methods. This is not new or unintended behavior.