Can’t access https://master.apis.dev.openstreetmap.org/ website for testing. SSL certificate is issued for a wrong domain name.
Chrome gives error net::ERR_CERT_COMMON_NAME_INVALID
because the certificate is issued for ant.dev.openstreetmap.org domain.
Hot to check: run cUrl tool
curl --insecure -vvI https://master.apis.dev.openstreetmap.org 2>&1 | grep -i subject
You’ll see SSL subject as subject: CN=ant.dev.openstreetmap.org
which differs from master.apis.dev.openstreetmap.org
.