Server showing data instead of gui

while searching for a chess web project in c# i found this one: https://github.com/sshipsey/WebChess. It seemed like just what i needed, but when i ran the server and tried connecting using localhost:8080 it showed me the chess pieces data instead of the chess GUI. No idea if i am not connecting correctly or if there's a problem with the code. Can anyone help? .Data shown when connecting