Hey fedi, I need some help!

I am trying to connect an application I am making with the Fediverse. When I search for an actor I am successfully able to get to the profile (yay) but when I search for a post I cannot find it.

I am receiving the GET request and am sending the response with the content type ("application/activity+json") (for example):

{
"@context":"https://www.w3.org/ns/activitystreams",
"name":"New Note",
"type":"Note",
"id":"https://critters.jpleite.eu/posts/1",
"attributedTo":"https://critters.jpleite.eu/users/1",
"content":"Hello there!",
"to":[]
}

Why would Mastodon not display the post?
The on Mastodon’s side is returning 403 action not allowed.

Thank you

#federation #fediverse #mastodon #help #mutualaid #MutualAidRequest #programming #activitypub #development #needhelp