So, an interesting issue came up in the #Fedify repo that I've been thinking about: #629.
You know how every #fediverse server uses schema:PropertyValue in actor attachment for profile metadata fields (like “Website”, “GitHub”, etc.)? Turns out, strict #AS2 validators like browser.pub reject it, because the AS2 spec says attachment should only contain Object or Link—and PropertyValue is a schema.org type, not an Activity Streams 2.0 type.
The thing is, we can't just drop the type like we did with Endpoints (#576), because Mastodon and others rely on seeing "type": "PropertyValue" to render profile fields. But at the same time, it's technically not spec-compliant.
I'm leaning towards writing a #FEP to formalize this existing practice rather than trying to invent a new type (like toot:PropertyValue extending Object), which would be a nightmare to migrate across the whole fediverse.
What do you all think? Has anyone else run into this? Would love to hear thoughts from implementers and spec folks.
#fedidev #ActivityPub #ActivityStreams #ActivityStreams2 #AS2 #PropertyValue