Latex + Julia + Jupyterlab not working

I’ve seen a few other threads asking similar questions but as far as I can tell no definitive solution. How do I get LaTeX labels on plots made via Julia in Jupyterlab? Attached screenshot shows Mathjax is loaded since the HTML tag renders right, but not Plotly, neither via Plots.jl nor PlotlyJS.jl. Thanks for any suggestions.

This is PlotlyJS v0.18.10, Plots v1.38.3, plotly 2.16.3.