I have a node app that I'm trying to start as a service. The app works fine if I start it from the command line like so: node app.js. In that case the process looks like: edoadmin 5003 4980 0 20:39 pts/0 00:00:00 node app.js, and the app is available from the browser.

If I create a service and enable it (sudo systemctl enable splitflap.service):

Description=Splitflap app 
Documentation=
After=network.target

[Service]
Type=simple
User=edoadmin
ExecStart=node /home/edoadmin/projects/splitflap/Split-Flap/app.js
Restart=on-failure

[Install]
WantedBy=multi-user.target

The process looks like:

edoadmin 921 1 0 Jan16 ? 00:00:00 /usr/bin/node /home/edoadmin/projects/splitflap/Split-Flap/app.js

but when I try to access the web app, I get the following error:

Cannot GET / in the browser.