What does adoptNode() return for DocumentFragment?

[TimothyGu]

#754 adds to adoptNode():

3. If node is a DocumentFragment node whose host is non-null, then return.

But adoptNode() must return a Node. What does this "return" mean?

@annevk

[annevk]

Sigh, it seems that change introduced a bunch of errors. If we can fix the replaceChild() issue somehow I'd say it should return the node passed in, even though it was not adopted.

Perhaps I should first revert that change and test changes though while we figure out a new design. Thoughts welcome.

[TimothyGu]

I think that reverting would be good, especially since none of the major browsers have implemented it. I'd be glad to use jsdom as a testbed for any such change.