Re: Why does the validator give an error when using the popovertarget attribute on the <button> tag? After all, this attribute is allowed by the specification?!"

Yes, this is indeed a bug.

сб, 8 мар. 2025 г., 01:50 Jukka K. Korpela <jukkakk@gmail.com>:

> Philip Taylor (P.Taylor@rhul.ac.uk) wrote:
>
>> The question (in the "Subject: " line) appears to be true, certainly for
>> the following example :
>>
>>
> [...]
>
>>
>>
>> *cf. *https://html.spec.whatwg.org/multipage/popover.html#attr-popo
>> <https://html.spec.whatwg.org/multipage/popover.html#attr-popover>
>>
>
> The strange thing is that the error message is followed by the information
> “Attributes for element button:” and a list of attributes, including
> “popovertarget
> <https://html.spec.whatwg.org/multipage/#attr-popovertarget> — Targets a
> popover element to toggle, show, or hide”.
>
> Similarly, <ul popover ...> is flagged as an error, “Error: Attribute
> popover not allowed on element ul at this point.”, but this is followed by
> “
> Attributes for element ul
> <https://html.spec.whatwg.org/multipage/#the-ul-element>:Global attributes
> <https://html.spec.whatwg.org/multipage/#global-attributes>
> ”
> and the link refers to information that says that “popover” is allowed for
> all elements.
>
> Jukka Korpela, https://jkorpela.fi
>
>