cURL error 7: Failed to connect to www.mindomo.com port 443 after 13 ms: Connection refused (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://www.mindomo.com/help/desktop/classroom-exercises/tasks/faqs/basics/ai/assignments/css/mobile/classroom-exercises/images/new_creating_mind_maps2.png