1883316 - Browsing to a fragment must automatically open details elements as needed

Status: RESOLVED DUPLICATE of bug 1724299

(Core :: DOM: Navigation, defect)

Description

[Anthony]

Attachment: test.html

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123.0

Steps to reproduce:

The following are 2 alternative ways to reproduce, and I expect both of them to work:

a) Open the file, scroll down, click "foo" (i.e. navigate to the fragment via a link)
b) Append #foo in the address bar and hit Enter (i.e. navigate to the fragment directly)

Actual results:

Nothing

Expected results:

The details elements are opened and the page starts at the paragraph with the text "foo". (If this is unclear: I expect the same behavior as Edge)

Comment 1

[Monica Chiorean]

I was able to reproduce the issue on Win10x64 using Firefox build 123.0(20240213221259).
If I open the attached link test.html, go to the bottom of it where the foo link is, and I press on it I am redirected to the expanded foo from the top this is the behavior on both Chrome and Edge, while on Firefox foo ii not expanded. There is a different behavior between FF and Chrome/Edge.
Marking issue as New. If component is not correct please update. Thank you.

Comment 2

[Fred Chasen [:fchasen]]

:sefeng Can reproduce this on a Mac as well - unsure what the intended behavior is as it differs between browsers. Could you take a look to determine if this is something that should be fixed?

Comment 3

[Sean Feng [:sefeng]]

So Safari also behaves the same as Firefox, it doesn't open the detail.

I think the spec should define this so this inconsistent behaviour can be fixed. Not sure if this is defined or known already.

Simon, do you think we should file a spec issue for this?

Comment 4

[Simon Pieters [:zcorpan]]

It's specified, see step 3.4 in https://html.spec.whatwg.org/multipage/browsing-the-web.html#scroll-to-the-fragment-identifier

It was added in https://github.com/whatwg/html/pull/6466

Relevant test: https://wpt.fyi/results/html/semantics/interactive-elements/the-details-element/auto-expand-details-element-fragment.html?label=master&label=experimental&aligned&q=auto-expand

Comment 5

[Sean Feng [:sefeng]]

ah thanks!