In https://github.com/whatwg/html/issues/7238, we forgot to export "visibility state", [=Document/hidden=] and [=Document/visible=]. There are quite a few specs depends on those. _Originally posted by @marcoscaceres in https://github.com/whatwg/html/issues/7238#issuecomment-968536220_
In #7238, we forgot to export "visibility state", [=Document/hidden=] and [=Document/visible=]. There are quite a few specs depends on those.
Originally posted by @marcoscaceres in #7238 (comment)