Table of Contents Section Numbers Do Not Export to HTML

[JWock82]

Description

Table of Contents Section Numbers Do Not Export to HTML

Reproduce

1. Use headings in your markdown cells: #, ##, ###, etc.
2. Turn on the table of contents feature to obtain automatically generated section heading numbers.
3. Save and export your notebook as HTML.
4. Look at the HTML in your browser. The table of contents section numbers do not appear.

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[FoSuCloud]

Looks to be consistent with the cause of the 15903 issue.
Could you please open another issue in nbconvert because the fix needs to be made in that package? Please mention this issue when you do so. Thanks again.

[FoSuCloud]

When displayed as markdown in jupyterlab, the html element of the directory will exist, but the element does not exist in the exported html.

[RRosio]

This issue, or at least a similar issue, seems to have been reported in the NbConvert repository previously as well, I've linked this issue there for reference.