2.2.19 [W3C-HTML51] Section 22.214.171.124.7 Text tracks describing chapters
C0033: Chapters are not presented to the user in any way
The specification states:
... Text tracks describing chapters Chapters are segments of a media resource with a given title. Chapters can be nested, in the same way that sections in a document outline can have subsections.
Chapters are not presented to the user in any way.