Fallback representation(s)

[evanp]

"As an ActivityPub API client developer, I want rules for a fallback representation for unrecognized activity or object types, so I can show a stand-in in a stream or other representation."

[evanp]

An example would be a microblogging application that sees an Arrive activity in the user's inbox. It could use the summary property to show a summary of the activity, and the url property to link to the Web page for the activity.

[evanp]

Another example would be a scrolling image application, similar to Instagram stories or Snapchat. It could use the image property to show an image for an Invite activity.