Is there even a new specification issue regarding iframes (and other elements loading remote resources)? It looks like the outcome of https://github.com/whatwg/html/issues/2806 was only lazy loading for
<img> elements, in the end.
(In reply to Anne (:annevk) from comment #1)
Do we need a tracking bug for this when there's no specification yet?
I assume, lazy loading for iframes will eventually also be specified. So either this bug should be kept open or closed for now and be reopened once specified in order to implement it.