Viewing an issue : Expandable element is not programmatically defined

Issue Summary

On the “Viewing an issue” page, the “Share this issue” button does not have a programmatically defined expandable state.

Steps to Reproduce

1. Navigate onto the above mentioned page.
2. Navigate onto the mentioned instance and inspect the code.
3. Observe that the expandable state is not programmatically determined.

Screenshot

Actual Results

The “Share this issue” expandable button does not have a programmatically defined expandable state. This button does not use aria-expanded attribute. As a result, users of assistive technologies found it challenging to understand the functionality associated with this element.

Expected Results

When elements expand or collapse a particular content, make sure that they have a programmatically defined expandable state. Use “aria-expanded” attribute on the expandable elements and update the “true” and “false” values appropriately. Make sure that the value is set to “true” when the elements are expanded and “false” when they are collapsed.
Code Snippet
<button aria-expanded=false">Share this issue</button>

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available

Environment

MacBook Pro (16-inch, 2021)
macOS Monterey Version 12.4
Chrome - Version 103.0.5060.134 (Official Build) (arm64)
Firefox- Version 93.0 (32-bit)
Safari- Version 15.5 (17613.2.7.1.8)
JAWS- Version 2022
NVDA- Version 2020.3
Voiceover - Version Latest