Well, I may clone his project from Git and have a closer look, but I think it’s because it uses canvas and SVG code that is implemented only in Blink at the time, not in Webkit or Gecko.
I didn’t even bother to test Edge, as I hate having to rev up a VM to do that.
P.S.: normally, something like this is right up my alley as I have been working with enterprise-level webapp dashboards for the past 5 years. It’s become the niche in web development that I have settled down in, though my current tasks are more related to Grafana, ElasticSearch and so on.
