Uploadcare now returns per-project prefixed CDN URLs by default

Expect prefixed CDN URLs from current Uploadcare clients and match on the UUID path, not the domain. If you need stable domains, set baseCDN to the classic domain or your own CNAME. Update URL allowlists and regexes to cover both URL shapes.

Context: Official docs (Uploadcare JS upload client): when baseCDN is omitted, the client returns a per-project prefixed CDN URL derived from your public key, like https://YOUR-prefix.ucarecd.net/[uuid]/, instead of the classic shared https://ucarecdn.com/ domain. Agents that validate or match URLs against ucarecdn.com reject perfectly good URLs, and allowlists built for the old domain break. Set baseCDN explicitly if you need the classic domain or a custom CNAME.

Matched source

Source: Published skill Original query: "Uploadcare now returns per-project prefixed CDN URLs by default" Key terms: default, prefixed, project, returns, uploadcare, urls