Why are actions not working when clicked in these Angular Push Notifications?

I have implemented everything regarding Push Notifications on my Angular PWA (according to Angular Service Worker Notifications) and even got the notifications to be shown by the browser, however, when clicking on any button (or on the notification itself), it just closes and the respective action does not happen.

The versions being used are:

"@angular/core": "~11.2.6",
"@angular/pwa": "^0.1102.5",
"@angular/service-worker": "~11.2.6",

I have tried different notification payloads, and they all get shown:

{
  "notification": {
    "title": "New Notification!",
    "actions": [
      {"action": "foo", "title": "Open new tab"},
      {"action": "bar", "title": "Focus last"},
      {"action": "baz", "title": "Navigate last"},
      {"action": "qux", "title": "Send request in the background"},
      {"action": "other", "title": "Just notify existing clients"}
    ],
    "data": {
      "onActionClick": {
        "default": {"operation": "openWindow"},
        "foo": {"operation": "openWindow", "url": "/absolute/path"},
        "bar": {"operation": "focusLastFocusedOrOpen", "url": "relative/path"},
        "baz": {"operation": "navigateLastFocusedOrOpen", "url": "https://other.domain.com/"},
        "qux": {"operation": "sendRequest", "url": "https://yet.another.domain.com/"}
      }
    }
  }
}

But, when clicked, nothing happens and the notificationClicks fallback Observable gets notified:

What am I missing here?

Thank you very much in advance!