Can't open ip127.0.0.1/localost in default chromium browser.

hey,
how can I open ip 127.0.0.1 with this default chromium browser?

when I created a listening port with the command sudo nc -l -p 80 -v, after ip 127.0.0.1:80 I accidentally opened it in the default chromium browser but there was no http response at all on the netcat that I made.