Proxy error: tls

[CLtheorem]

I just download the latest release file and run it directly. I got the following error when I go to http://127.0.0.1:8080 (HTTP ERROR 502). It happened in both mac and linux(kali).

is this a bug or just something wrong with my operation?

[lalyos]

use http://localhost:8080 instead of 127.0.0.1