plotly-extension - lots of warnings when building

[codecachet]

Using a mac, with the following: node --version v10.15.3 npm --version 6.4.1 yarn --version 1.15.2

And running install @jupyterlab/plotly-extension

I get: Deprecation warnings (e.g. Buffer()) Multiple definition warnings (e.g. WARNING in d3-array), etc.

It ends up working, so I am happy - but I ask: why all the warnings? And why do I need to build this extension? Why can't it just "install"? Why do I need to run this node process anyway? I am a user, and just want to install an extension. Perhaps the way extensions work in Jupyter Lab needs to change? The complexity requiring a user to do a build I think is just asking for trouble (especially in light of all of the node dependencies and versions etc.). Thanks - the fact that this works is great, and I really like Plotly inside Jupyter. But...install process seems quite brittle.