@mariusor Yes. I've found that in the wild, sending Activity/Object generally always works, whereas a lot of implementations don't dereference correctly, so I err on the side of embedding the object unless it's like, media files.

What is the issue with sending redundant data out? Ultimately if I send a dereferenceable URI, the receiving server will ask me for the data regardless. At least this way I'm packing it into a single HTTP request instead of multiple.