This is one of many protocol behaviors described in ActivityPub.

Identifier

urn:uuid:08549639-2888-4ee2-a320-97fc7ee32e00

Content

Servers… MUST present the ActivityStreams object representation in response to application/ld+json; profile="https://www.w3.org/ns/activitystreams"

Origin

prefix in response to a request, but

MUST present the ActivityStreams object representation in response to application/ld+json; profile="https://www.w3.org/ns/activitystreams"
 
suffix , and SHOULD also present

https://www.w3.org/TR/activitypub/

JSON

{
  "id": "urn:uuid:08549639-2888-4ee2-a320-97fc7ee32e00",
  "type": "Behavior",
  "name": "ActivityPub server must present object in response to GET request with AS2 Accept Header",
  "content": "Servers… *MUST* present the ActivityStreams object representation in response\nto `application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"`\n",
  "origin": {
    "source": "https://www.w3.org/TR/activitypub/",
    "section": {
      "id": "https://www.w3.org/TR/activitypub/#retrieving-objects",
      "branch": [
        3,
        2
      ]
    },
    "selector": {
      "type": "TextQuoteSelector",
      "exact": "MUST present the ActivityStreams object representation in response to application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\"",
      "prefix": "in response to a request, but",
      "suffix": ", and SHOULD also present"
    }
  },
  "uuid": "08549639-2888-4ee2-a320-97fc7ee32e00",
  "@context": [
    "https://www.w3.org/ns/activitystreams",
    "https://socialweb.coop/ns/testing/context.json"
  ]
}