Comment 2 for bug 1491317

I like Port forwarding don't get me wrong, but (as mentioned in the spec), providing this in a DVR context is challenging if not impossible under current circumstances, and therefore this becomes a hurdle for us if we want to provide a consistent user experience. Furthermore, this spec/feature has received very little attention both from reviewers and submitters, reflecting the fact that perhaps there isn't much appetite in solving this right now. Finally, the container use case presented is interesting, but I would imagine that port-forwarding is not exactly top priority (but I may be mistaken).

For these reasons, and until more clarity can be provided on some of the aspects raised in the spec, I'd say this may end up being deferred.