[whatwg] "Content-Disposition" property for <a> tags

[Michal Zalewski]

> At least in the case of Firefox for that particular case on Windows the
> filename will be sanitized...

Yes, but Firefox is an exception, not a rule; and even that mechanism
is very imperfect (it relies on explicit mappings that are not
guaranteed to be in sync with other OS components; when downloading a
less known MIME type, like image/jpeg2000, the user is still in
trouble).

/mz