⚠ Testnet RPC not reachable from the browser.
The SLON nodes serve RPC on port 8899, which Cloudflare's edge proxy cannot reach
(Workers only allow outbound ports 80/443/8080/8443/…, and the node firewall blocks others).
The explorer goes live the moment a node exposes RPC on an allowed, firewall-open port
(e.g. 8080). Node status is still reachable directly via
curl http://149.28.39.7:8899.