- From: David Dorward <david@dorward.me.uk>
- Date: Thu, 31 Jan 2019 09:14:54 +0000
- To: "Jean-Pierre GAY" <jpg@temesis.com>
- Cc: www-validator@w3.org
- Message-ID: <70631774-17FD-4F85-8689-51E541E61145@dorward.me.uk>
On 30 Jan 2019, at 19:06, Jean-Pierre GAY wrote: > I've got this error message: "the main element must not appear as a > descendant of the td element". > However, nothing in the HTML specification indicates that " the main > element must not appear as a descendant of the td element": Content > model for td is flow content and parent content model expected for > main is also flow content (except for article, aside, footer, header > and nav). So, what is the meaning of this error message? *Start stream of thought* It looks like this is caused by this change: https://github.com/validator/validator/commit/8024cd861c666890795b897d42c457666b598cb5 This does appear to contradict the HTML 5.2 specification: https://www.w3.org/TR/html5/grouping-content.html#the-main-element The WHAT WG spec says: https://html.spec.whatwg.org/multipage/grouping-content.html#the-main-element > Contexts in which this element can be used: > > Where flow content is expected, but only if it is a hierarchically > correct main element. and: https://html.spec.whatwg.org/multipage/grouping-content.html#hierarchically-correct-main-element > A hierarchically correct main element is one whose ancestor elements > are limited to html, body, div, form without an accessible name, and > autonomous custom elements. Each main element must be a hierarchically > correct main element. This agrees with the comment on the change to the validator: > Allow only `html`, `body`, `div`, `form`, custom elements as `main` > ancestor *End stream of thought* The validator is comparing to the What WG Living HTML specification, and not the HTML 5.2 specification. I suspect that the HTML 5.2 version is based on an older snapshot of What WG Living and it has changed in the meantime. -- David Dorward http://dorward.co.uk/
Received on Thursday, 31 January 2019 09:15:26 UTC