Assuming they're using pure CSS for the font loading (which is standard for Google's CDN), yes, the browser will use a local copy in preference. (There's a way

Assuming they're using pure CSS for the font loading (which is standard for Google's CDN), yes, the browser will use a local copy in preference. (There's a way to disable that in CSS's font spec, although it's hard to think of a good use for that.)