Summary & Key Takeaways ​

• Explores the correct use cases for the aria-expanded attribute.
• Addresses challenges in determining appropriate ARIA usage for collapsible elements.
• Differentiates between collapsible sections and interactive elements.
• Emphasizes the importance of context for assistive technologies.
• Provides guidance on when aria-expanded is necessary or can be replaced.
• Refers to the ARIA Authoring Practices Guide (APG) for further context.

Our Commentary ​

Accessibility is not just a checkbox; it's a fundamental part of web development. This deep dive into aria-expanded is incredibly valuable because these attributes are so often misused. We appreciate the nuance and the emphasis on understanding context for assistive technologies. It's a reminder that good communication extends beyond human-to-human interaction.