299321 2025-09-22 14:29:07 -0700 AX: content within a `<details>` element with `display: contents` is not accessible when expanded 2025-10-27 14:15:36 -0700 1 1 1 Unclassified WebKit Accessibility Safari Technology Preview All All NEW HasReduction, InRadar P2 Normal --- 1 nathan webkit-unassigned andresg_22 aroselli chriskirknielsen+wkbugs nathan webkit-bug-importer oldest_to_newest 2144985 0 476830 nathan 2025-09-22 14:29:07 -0700 Created attachment 476830 Details elements with `display: contents` set If a `<details>` element has `display: contents` set on it and then it is expanded or collapsed, the content within the `<details>` element is not accessible via VoiceOver (tested on macOS and iOS 26). Occasionally, either clicking directly on the content or collapsing another `<details>` element will cause the content to be accessible. This does not happen in other browsers on macOS or using screen readers on other platforms (e.g. NVDA on Windows). 2144987 1 webkit-bug-importer 2025-09-22 14:29:53 -0700 <rdar://problem/161122150> 2144992 2 nathan 2025-09-22 14:37:47 -0700 Forgot to mention that I did test this in the latest tech preview (228) as well. 2144994 3 nathan 2025-09-22 14:43:37 -0700 I can confirm this bug in the latest build as well 300339@main. I thought that https://bugs.webkit.org/show_bug.cgi?id=298403 and it’s solution (299601@main) seemed related or at least overlapping, so I wanted to confirm it wasn’t the same issue or one that had been fixed. 2144996 4 476831 nathan 2025-09-22 14:49:31 -0700 Created attachment 476831 Details elements (collapsed and expanded) with `display: contents` When the `<details>` is initially expanded (i.e. `open` attribute is set) the content is accessible. I’ve updated the reduction to include an example of that. 476830 2025-09-22 14:29:07 -0700 2025-09-22 14:49:31 -0700 Details elements with `display: contents` set details-display-contents.html text/html 357 nathan PCFkb2N0eXBlIGh0bWw+CjxodG1sIGxhbmc9ZW4tY2E+CjxtZXRhIGNoYXJzZXQ9dXRmLTg+Cjxt ZXRhIG5hbWU9dmlld3BvcnQgY29udGVudD13aWR0aD1kZXZpY2Utd2lkdGgsaW5pdGlhbC1zY2Fs ZT0xPgo8bWV0YSBuYW1lPWNvbG9yLXNjaGVtZSBjb250ZW50PSJkYXJrIGxpZ2h0Ij4KPHRpdGxl PkRldGFpbHMgKyBkaXNwbGF5OiBjb250ZW50czwvdGl0bGU+CjxzdHlsZT5kZXRhaWxzIHsgZGlz cGxheTogY29udGVudHM7IH08L3N0eWxlPgo8ZGV0YWlscz48cD5Db250ZW50PC9wPjwvZGV0YWls cz4KPGRldGFpbHM+PHN1bW1hcnk+UHJvdmlkZWQgc3VtbWFyeTwvc3VtbWFyeT48cD5Db250ZW50 PC9wPjwvZGV0YWlscz4K 476831 2025-09-22 14:49:31 -0700 2025-09-22 14:49:31 -0700 Details elements (collapsed and expanded) with `display: contents` details-display-contents.html text/html 430 nathan PCFkb2N0eXBlIGh0bWw+CjxodG1sIGxhbmc9ZW4tY2E+CjxtZXRhIGNoYXJzZXQ9dXRmLTg+Cjxt ZXRhIG5hbWU9dmlld3BvcnQgY29udGVudD13aWR0aD1kZXZpY2Utd2lkdGgsaW5pdGlhbC1zY2Fs ZT0xPgo8bWV0YSBuYW1lPWNvbG9yLXNjaGVtZSBjb250ZW50PSJkYXJrIGxpZ2h0Ij4KPHRpdGxl PkRldGFpbHMgKyBkaXNwbGF5OiBjb250ZW50czwvdGl0bGU+CjxzdHlsZT5kZXRhaWxzIHsgZGlz cGxheTogY29udGVudHM7IH08L3N0eWxlPgo8ZGV0YWlscz48cD5Db250ZW50PC9wPjwvZGV0YWls cz4KPGRldGFpbHM+PHN1bW1hcnk+UHJvdmlkZWQgc3VtbWFyeTwvc3VtbWFyeT48cD5Db250ZW50 PC9wPjwvZGV0YWlscz4KPGRldGFpbHMgb3Blbj48c3VtbWFyeT5PcGVuIGJ5IGRlZmF1bHQ8L3N1 bW1hcnk+PHA+Q29udGVudDwvcD48L2RldGFpbHM+Cg==