Object elements must have text alternatives

Checks embedded <object> content for accessible fallback text or equivalent alternative access path.

• Some users cannot perceive or load embedded object content
• Assistive technologies may not expose embedded content consistently
• Fallback text ensures continuity when plugins or formats fail

Provide meaningful fallback text or an accessible alternative inside the <object> element.

Bad Example:

<object data="brochure.pdf" type="application/pdf"></object>

Good Example:

<object data="brochure.pdf" type="application/pdf">
  <p>Download the brochure: <a href="brochure.pdf">PDF brochure</a></p>
</object>

• Empty <object> tags
• Fallback links without descriptive text
• Relying on unsupported plugin content only

• Disable plugin/rendering support and verify fallback content
• Test with screen reader announcement of fallback text
• Confirm keyboard navigation reaches alternatives