nypost hub not sending updates

[gmion11]

I was able to subscribe to the hub using the info below (I received the GET request to my callback and received a 204 response from the nypost server), but when the feed updates with new articles, I don't receive a POST request to my callback. How come? Can somebody try subscribing and see if they get updates? Nypost updates fairly often so it shouldn't take long to test.

hub = https://nypost.com/?pushpress=hub
topic = https://nypost.com/feed/​

Thanks.