Thanks. It works. I was using the savefig function instead of PlotlyJS.savefig.
PlutoPlotly.jl is working very well and is extremely handy. I am migrating many notebooks initially produced with the workaround (using PlotlyBase) you developed to integrate PlotlyJS with Pluto. There is only one small detail that I am missing in PlutoPlotly that was available in your workaround. Now, when I change the max-width of the notebook, the plots produced before this change was implemented do not react to the new notebook’s width. To have the plots react to the change, I have to run each individual cell that executes the plots. The automatic reactive plot’s width is a small detail, but sometimes it is convenient.
Many thanks for your prompt help.