I notice in at least some specs produced by y'all, such as..
..there are some terms that are underlined with lighter blue thick lines,
but which are not links, and are not explicitly defined within those specs.
e.g, a few from  "absolute url", "tasks", "event loops"; and a few from
 "origin", "task source", "same".
in looking at the source the specs are renderede from, in each case such
terms are enclosed by <span>...</span>, like so..
It seems like this markup is being used to signal that the term is defined
in another spec (eg HTML5, URL), but there's not cross-spec linking nor
explicit explanation that this is the case, so I'm guessing.
Does anyone have insight on this?