System status page doesn't detect new version of CiviCRM, nor does it print an error.
When I visit the system status page at
https://example.com/civicrm/a/#/status, I am not notified of a new version of CiviCRM. This may be due to our outbound firewall, but we are also not notified of an error in trying to fetch the update information.
We are using CiviCRM 5.3.1.