cURL error 7: Failed to connect to www.mindomo.com port 443 after 12 ms: Connection refused (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://www.mindomo.com/help/ahd4/classroom-exercises/template-mind-map/desktop/css/integrations/saml/basics/tasks/assignments/subscriptions/images/favicon.ico