New cells button

[declann]

The button for creating new cells also doesn't work and I think it is bad html form to have spaces in node ids.

I added these lines

script.id = `new-cell-${value}`;
script.dataset.display = `new-cell-${value}`;

And, I'm not sure how necessary but I also added id="viewof-new-cell" to the associated script tag (there was no id) and use that in getElementById (note the dash after viewof)

[MaxwellBo]

Ah thanks for the report here. I think you've correctly identified the root cause. Although there's some problems with those new cells (they don't support contenteditable) that I'm going to try and fix up too.