right, r2 custom domains don't supported tier caching so you just get local

By design, replicas do not offer any level of traffic steering (random, hash, or round-robin). Instead, when a request arrives to Cloudflare, it will be forwarded to the replica that is geographically closest. If that distance calculation is unsuccessful or the connection fails, we will retry others, but there is no guarantee about which connection is chosen.

const json = JSON.parse(await resp.json())

const json = await resp.json()