Thanks! There is a corollary to this that would have prevented all this - when I went back in the Chrome settings and set the settings to the same order, it reset my header to this: "en-US,en;q=0.8,ko;q=0.6" - which makes things work for all sites again. I haven't touched my language settings since ~2012, so it's possible Chrome "fixed" this a while back, but didn't change my existing settings.