WCAG Failureswcagfail.patternd.io

F72: Failure of Success Criterion 1.1.1 due to using ASCII art without providing a text alternative

Corpus WCAG 2.2Applies to WCAG 2.0, 2.1, 2.2Level AAutomatable: partial

Summary: using ASCII art without providing a text alternative

Why it fails: This page reproduces the F72 failure pattern so auditors can verify detection against 1.1.1.

Failure technique

https://www.w3.org/WAI/WCAG22/Techniques/failures/F72

Understanding

Quickref

Intentional failure — audit this region

F72

  %   __ __ __ __ __ __ __ __ __ __ __ __ __ __
100 |             *                             |
 90 |                *  *                       |
 80 |          *           *                    |
 70 |             @           *                 |
 60 |          @                 *              |
 50 |       *        @              *           |
 40 |                   @              *        |
 30 |    *  @              @  @           *     |
 20 |                                           |
 10 |    @                       @  @  @  @     |
      0  5 10 15 20 25 30 35 40 45 50 55 60 65 70
      Flash frequency (Hz)

<pre class="f72-chart">
  %   __ __ __ __ __ __ __ __ __ __ __ __ __ __
100 |             *                             |
 90 |                *  *                       |
 80 |          *           *                    |
 70 |             @           *                 |
 60 |          @                 *              |
 50 |       *        @              *           |
 40 |                   @              *        |
 30 |    *  @              @  @           *     |
 20 |                                           |
 10 |    @                       @  @  @  @     |
      0  5 10 15 20 25 30 35 40 45 50 55 60 65 70
      Flash frequency (Hz)
</pre>
Expected audit result

Manual check: Confirm the specimen demonstrates the documented F72 failure in isolation.