Execute session disconnect in background

lib/pleroma/application.ex

@@ -89,7 +89,8 @@ defmodule Pleroma.Application do
         Pleroma.Repo,
         Config.TransferTask,
         Pleroma.Emoji,
-        Pleroma.Web.Plugs.RateLimiter.Supervisor
+        Pleroma.Web.Plugs.RateLimiter.Supervisor,
+        {Task.Supervisor, name: Pleroma.TaskSupervisor}
       ] ++
         cachex_children() ++
         http_children(adapter, @mix_env) ++

lib/pleroma/web/o_auth/token/strategy/revoke.ex

@@ -21,7 +21,18 @@ defmodule Pleroma.Web.OAuth.Token.Strategy.Revoke do
   @doc "Revokes access token"
   @spec revoke(Token.t()) :: {:ok, Token.t()} | {:error, Ecto.Changeset.t()}
   def revoke(%Token{} = token) do
-    Repo.delete(token)
-    Pleroma.Web.Streamer.close_streams_by_oauth_token(token)
+    with {:ok, token} <- Repo.delete(token) do
+      Task.Supervisor.start_child(
+        Pleroma.TaskSupervisor,
+        Pleroma.Web.Streamer,
+        :close_streams_by_oauth_token,
+        [token],
+        restart: :transient
+      )
+
+      {:ok, token}
+    else
+      result -> result
+    end
   end
 end