In many places in MDN, the term DOMString is used when the spec is using USVString. It seems that USVString is a subset of DOMString which doesn’t allow (?) unpaired unicode code points.
Also CSSOM specs seem to use the term CSSOMString to which could mean either DOMString or USVString. MDN lists CSSOMString also as DOMString.
So I was wondering if these need to be updated or are they good as is?