Plotly error "Resize must be passed a displayed plot div element."

When resizing a window while a plot is not visible, plotly logs this error.
To fix this you can add this test in `onResize()` (the same check as in plotly that triggers this error):
```
let e = window.getComputedStyle(graph).display;
if ( !e || "none" === e) return;
```
I don't know if this has an impact on the `onResize()` functionality.