Provide unique accesskeys [SC4-1-1-accesskey]

Test info

Test for Success Criterion 4.1.1

About

Checked Elements: Elements for which the accesskey attribute is allowed and defined

This test checks accesskey attribute for all elements to have a unique value.

Short Description

Accesskeys are used to access an element with the keyboard directly. If their values are not unique, the result of pressing the key is not uniquely resolvable. <br> Autowcag test description: <a href="https://www.w3.org/community/auto-wcag/wiki/SC4-1-1-accesskey">SC4-1-1-accesskey</a>

https://www.w3.org/community/auto-wcag/wiki/SC4-1-1-accesskey

How to Repair

Assign a new, unique, one character long accesskey to the element.

WCAG 2.0

Principle 4: Robust

Content must be robust enough that it can be interpreted reliably by a wide variety of user agents, including assistive technologies.
WCAG 2.0: Principle 4

Guideline 4.1: Compatible

Maximize compatibility with current and future user agents, including assistive technologies.
Understanding Guideline 4.1

Success Criterion 4.1.1: Parsing (Level A)

In content implemented using markup languages, elements have complete start and end tags, elements are nested according to their specifications, elements do not contain duplicate attributes, and any IDs are unique, except where the specifications allow these features. Note: Start and end tags that are missing a critical character in their formation, such as a closing angle bracket or a mismatched attribute value quotation mark are not complete.
Understanding: Success Criterion 4.1.1

Techniques

F17: Failure of Success Criterion 1.3.1 and 4.1.1 due to insufficient information in DOM to determine one-to-one relationships (e.g., between labels with same id) in HTML

Possible Results

The accesskey is not unique: Labels visually presented for form controls, but does not use the label element to associate them with their controls
The accesskey is unique: There is no element with the same accesskey before the inspected element.