Hidden content on the page cannot be analyzed

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Rule Description

Informs users about hidden content that cannot be analyzed for accessibility violations

The Algorithm, in Simple Terms

Checks for style property values of ('display') === 'none') and ('visibility') === 'hidden') to alert to the presence of hidden item content in need of review.

Why this is Important

Hidden content cannot be automatically analyzed for accessibility rule violations.

How to Fix the Problem

You will need to trigger the display of this content in order to analyze it. A failure indicates there were problems analyzing the content on the page under test, whereas when "incomplete," there were hidden items identified that must be exposed in order to be analyzed. Passing of this rule (in other words, no violations found) indicates it was possible to analyze all of the content on the page and no hidden content was found.

Compliance Data & User Impact

User Impact: Minor
Disabilities Affected:
  • Blindness
  • Color-blindness
  • Sighted Keyboard Users
Issue Type:
  • Deque Experimental
WCAG Success Criteria:
  • Not applicable
Section 508 Guidelines:
  • Not applicable

Related Deque University Course Pages

Other Related Resources

Additional Information

Relevant Technologies:
  • CSS
  • ARIA
Test Reliability: Automated testing is possible, with high accuracy
Rule ID: hidden-content