TypeError: <myJSONArrayData.map> is not a function -- ONLY on mobile, no error on desktop?

[sormiston]

This is pretty baffling. This .map method in the render portion of my react component has a guard statement (thingFromProps && thingFromProps.map) and works as expected on desktop.... breaks with TypeError on Firefox and Chrome for Android.

Also would love help understanding how to get working with bulma / scss in context of create-react-app ...

I know you've got bigger fish to fry but any help is much appreciated.