inventaire.io is a #libre webapp to share physical books with your friends, groups, and neighbors. To do that, we run a #Wikidata-federated open bibliographic database, learn more: https://data.inventaire.io
that works just fine in (streams). There was an initial issue with fetching the URL from a navbar search as we had sanitised the input and this escaped the & in the url. That's now fixed so search works and it loads fine from the dev tools and parses into a valid message. So beyond fixing the navbar search to handle ampersands I don't see any federation problems here.I would strongly recommend that the inventaire folks use the long form of the ActivityPub public inbox url and make the 'to' field an array in all cases, even if it only has one recipient. While we can parse that just fine and it's entirely legal, I know of a number of projects which will probably fail on that construct - and I highly suspect that Hubzilla is one of them. One could insist that this usage is correct (and it is); and request that other projects fix their code - however my experience with this approach is that unless it breaks Mastodon it is highly unlikely it will get fixed any time soon.
{"status":400,"status_verbose":"invalid @context: https://hub.somaton.com/apschema/v1.10 (possible values: https://www.w3.org/ns/activitystreams, https://w3id.org/security/v1)","context":{"value":"https://hub.somaton.com/apschema/v1.10"}}
