Anchor attribute is at risk, should it be prominently documented?

[lukewarlow]

MDN URL

https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/anchor

What specific section or headline is this issue about?

No response

What information was incorrect, unhelpful, or incomplete?

The feature this page (and other pages) refers to is only implemented behind a flag in one browser and is at risk from a standardisation point of view. The spec PR can be found here: whatwg/html#9144 overall the sentiment seems mixed. This lead to the recent implicit anchoring feature of showPopover({source}) and popovertarget.

What did you expect to see?

This is to discuss whether this feature should be documented at all, or at least as widely as it is?

Do you have any supporting links, references, or citations?

No response

Do you have anything more you want to share?

No response

[Josh-Cena]

By "as widely as it is" what are you referring to? I think a single page is about the right amount of attention that each feature deserves, but if it has its own mention in a guide page, we are happy to point to alternatives instead. Our policy is anything that's available in browsers should be documented, so even if Chrome unships it, we need to wait two years to remove its documentation.

[lukewarlow]

Chrome never did ship it fwiw. It's in Chrome behind a flag which I don't believe has the same requirements but could be wrong.

It's also mentioned on the main Using CSS Anchor Positioning page https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_anchor_positioning/Using#html_method possiblye elsewhere too.

[lukewarlow]

This issue comes from #37990 (comment)

[Josh-Cena]

I think we should remove its mention in the guide, but keep its reference, unless Chrome actually unships it, in which case it may be not subject to the 2-year rule if we think Canary means unstable anyway.

[hamishwillee]

I agree 100 % with Josh. FYI @chrisdavidmills - this is tangentially related to the popover stuff. Is it something you could clean?

[chrisdavidmills]

I agree 100 % with Josh. FYI @chrisdavidmills - this is tangentially related to the popover stuff. Is it something you could clean?

Done in b9c9e03