I can't run the viz of eeg signal using LSL

[rodrigohubner]

I ran it:

npm start
[email protected] start /home/rhubner/BCI/OpenBCI_NodeJS/examples/labstreaminglayer
concurrently --kill-others "python handoff.py" "node index.js"
[1] bound to tcp://127.0.0.1:3004
[1] auto found board
[1] using real board /dev/ttyUSB0
[1] Serial port connected
[1] Serial port open
[1] Sending stop command, in case the device was left streaming...
[1] Sending soft reset
[1] Waiting for '$$$'

How can I see or start send signal on browser now?