FYI, I’ve reviewed the following and no dice yet:
How to perform server side manipulation using Plotly.js
(How to perform server side manipulation using Plotly.js)
Plot data located in external file?
(Plot data located in external file?)
Best way to serve Plotly graphs …
(Best way to serve Plotly graphs on a small searchable web-app? On-demand plotly.js visualization or storing plotly iframe URLs in a database?)
Using plotly without hosting data
(Using plotly without hosting data)