Fix response to poll JSON URL

lib/pleroma/web/activity_pub/utils.ex

@@ -19,7 +19,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
 
   require Logger
 
-  @supported_object_types ["Article", "Note", "Video", "Page"]
+  @supported_object_types ["Article", "Note", "Video", "Page", "Question"]
 
   # Some implementations send the actor URI as the actor field, others send the entire actor object,
   # so figure out what the actor's URI is based on what we have.
@@ -688,6 +688,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do
         "type" => "Question",
         "attributedTo" => params.object_id,
         "endTime" => params.expires,
+        "to" => params.to,
         "replies" => %{
           "type" => "Collection",
           "totalItems" => 0,