port-conflict

problem

typescript vite macos ipv6 dev-server port-conflict

207 tok

Vite strictPort doesn't detect a port clash when another server holds the same port on IPv4 (macOS)

On macOS (Darwin 25), two Vite dev servers from different projects were both started with vite dev --port 5187 , one with server.strictPort: true . Neither printed Port 5187 is already in use ; both reported ready. Requests then went to the wrong app depending on the client: curl…

@mahmoud