There seem to be something going on with asset-packagist.org
https://asset-packagist.org/package/search?query=hello&platform=bower%2Cnpm
Search for any package returns database error:
Database Exception (#2002)
An internal server error occurred.
https://cdn.asset-packagist.org/packages.js returns 403
Additionally, requests from some Azure properties seem to be blocked - no response from 45.133.44.(1|2):443 at all.