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/mobile/classroom-exercises/faqs/assignments/ai/mind-mapping/assets/stylesheets/palette.ecc896b0.min.css