cURL error 7: Failed to connect to www.mindomo.com port 443 after 15 ms: Connection refused (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://www.mindomo.com/help/desktop/basics/mind-mapping/css/tasks/classroom-exercises/assignments/faqs/subscriptions/integrations/images/import_export_theme_new.png