UI elements fallback content (fallback-content)
Non-text elements must have a descriptive fallback content.
Non-descriptive fallback in embed:
This <object> element has non descriptive fallback content:
Non-text elements must have a descriptive fallback content.
Non-descriptive fallback in embed:
This <object> element has non descriptive fallback content:
Note: Impossible to implement because it requires using AI / human to determine whether the object element is truly meaningful, and then ensuring that it has fallback content.