ARIA progressbar must have an accessible name

ルールID: aria-progressbar-name
ルールセット: axe-core 4.7
ユーザーへの影響: 深刻
ガイドライン: WCAG 2.1 (A), WCAG 2.0 (A)
 

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Compliance Data & Impact

User Impact

深刻
▼
Minor
Critical

Disabilities Affected

  • 視覚障害
  • ロービジョン
  • 運動障害

Standard(s)

  • WCAG 2.1 (A)
  • WCAG 2.0 (A)

WCAG 達成基準 [WCAG 2.1 (A)]

  • 1.1.1: 必須: Non-text Content

WCAG 達成基準 [WCAG 2.0 (A)]

  • 1.1.1: 必須: Non-text Content

修正方法

Correct markup solutions

The aria-progressbar-name rule has three markup patterns that pass test criteria:

<div role="progressbar" id="alb" aria-labelledby="labeldiv"></div>

<div role="progressbar" id="combo" aria-label="Aria Name">Name</div>

<div role="progressbar" id="title" title="Title"></div>

  1. Ensure that each element with role="progressbar" has one of the following characteristics:

    • Non-empty aria-label attribute.
    • aria-labelledby pointing to element with text which is discernible to screen reader users.

Incorrect markup solutions

The aria-progressbar-name rule has four markup patterns that fail testing criteria:

<div role="progressbar" id="empty"></div>

<div role="progressbar" id="alempty" aria-label=""></div>

<div role="progressbar" id="albmissing" aria-labelledby="nonexistent"></div>

<div role="progressbar" id="albempty" aria-labelledby="emptydiv"></div>
<div id="emptydiv"></div>

なぜ重要なのか

Screen reader users are not able to discern the purpose of elements with role="progressbar" that do not have an accessible name.

ルールの説明

Aria progressbar elements must have discernible text that clearly describes the destination, purpose, function, or action for screen reader users.

仕組みについて (簡単に言うと)

Checks all elements with role="progressbar" to ensure that they have a discernable, accessible name.

リソース

Deque University コースのページ (要登録)

関連するコース情報はありません。

GitHub で axe-core に貢献する

axe 4.7 ルールの一覧 を参照する

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