Step 3 of the algorithm for DOMTokenList.has says:
If the token indicated by token is one of the tokens in the object's underlying string then return true and stop this algorithm.
What does "token is one of the tokens" mean? I assume it means that a case-sensitive string comparison of token with each of the tokens in the DOMTokenList yields one match. It might be good to clarify this in the spec. Note that the algorithms for DOMTokenList.add and DOMTokenList.toggle use similar wording.
Should methods of element.classList treat their arguments case- insensitively in quirks mode? I think they should. This should be mentioned in the spec.
-Adam
