Thanks - I changed the CDN and that seemed to fix it. I also realized that I was loading eCharts in every ui-template. I removed those and used the new CDN in a ui-template (Type = widget, Scope = "All Pages"). Hopefully, if there are any changes in the future, I only have to address them in one place 
Would the correct way be to put it in a sub-directory in the node-red directory on the RPi that is running Node-RED? I think I also have to make some changes then to the settings.js file - not sure what those are so need to research a bit (if that is the right approach)
