Without more information I can't be much help - you're definitely using it from the Chrome Web Browser?
Maybe you could start a new issue and post up the logs from the Chrome developer console, as well as the results of running sudo journalctl -f -u EspruinoHub on the Pi while trying to connect.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Without more information I can't be much help - you're definitely using it from the Chrome Web Browser?
Maybe you could start a new issue and post up the logs from the Chrome developer console, as well as the results of running
sudo journalctl -f -u EspruinoHub
on the Pi while trying to connect.