Network calls not showing in the Chrome Dev Tools Network tab

I have built a Nativescript app based on the Groceries template from the Nativescript documentation here. I got it up and running and working, and when I call tns debug android I can see all network calls to the Everlive api in the Network tab of Chrome Dev Tools. I am now embarking on replacing that default implementation with this Firebase plugin, and I can get the list working, I can add groceries and display the list of groceries. However, none of the calls to the firebase api show up in the Network tab of the Chrome Dev Tools.

Please advise why that would be? Am I missing something, or could it be an issue with this Firebase Plugin?