This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
I guess what the spec is trying to say is: partial interface HTMLLinkElement { readonly attribute Document? import; }; and without the "HTMLLinkElement implements LinkImport;" part
Thank you for the suggestion! https://github.com/w3c/webcomponents/commit/45b44644ade983aad3efee8a8429fa435aeda 77a