Aria Hidden True Meaning

In other words elements with aria hidden true are removed from the accessibility tree which most assistive technology honors and elements with aria hidden false will definitely be exposed to the tree. Css display none as mentioned the standard method to hide content from all users in browsers that support css is and has been to use css display none. The aria hidden state indicates whether an element is exposed to the accessibility api.

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Dom의 한 부분이 접근성 api에 노출되지 않도록 하는 방법은 여러 가지가 있습니다.

Aria hidden true meaning. The default state for an element is false. Aria hidden false is not mapped in any browser that supports aria hidden thus its use has no meaning or in other words has the same meaning as its absence. Aria hidden true means the element is removed from the tree and aria hidden false means the element is present in the tree. To improve web accessibility we recommend using aria hidden true to hide icons used purely for decoration.

Setting aria hidden without a value will default to the current state of the element meaning that if it is currently exposed to the accessibility api then it will continue to do so where as if the element is not exposed it will continue to not be exposed if an aria hidden with an empty string is used. Using aria hidden true on unicode characters that at should ignore draft unicode character with an on screen text alternative draft h67. Aria hidden true will remove the entire element from the accessibility api. Role presentation and role none will remove the semantic meaning of an element while still exposing it to assistive technology.

When to use aria hidden true. In my opinion the aria spec language could should be clarified here to underscore the fact that it is not any user but rather any user accessing the accessibility api. Elements can be added or removed in the html or programmatically in javascript and combined with other accessibility attributes to create robust interactions with assistive technology. Using null alt text and no title attribute on img elements for images that at should ignore.

Authors using aria hidden to hide visible content from screen readers must ensure that identical or equivalent meaning and functionality is exposed to assistive technologies.