When a heading is empty - no text. Appears this breaks the creation process as Canvas won't create an empty page.
Ditto with too many images -- context too big.
[x] Add a checks/warning process for Word Converter
[x] Add support for generating warning for empty headings
[x] add message for error
[x] add some indication in the HTML showing the error
[x] Remove empty headings after displaying the broken html
When a heading is empty - no text. Appears this breaks the creation process as Canvas won't create an empty page. Ditto with too many images -- context too big.