I have started building my own MagicMirror and would like to use your module to display who’s home based on phones connected to the wifi. I already have OpenHab set up with a sitemap showing who is home. After following your readme file, I now get a white box with nothing in it and chromium opens when MagicMirror does.
I made a copy of the sitemap and called it MMMOpenhab.sitemap and added your extra code. The sitemap works and I can access it. I get no errors when running npm start dev so MagicMirror can see the MMM-OpenHab module. I’m just not sure whats going wrong.