duplicate-id
Every id attribute value must be unique
Description
Ensure the uniqueness of id attributes to prevent assistive technology from overlooking subsequent instances.
Why is it important?
Having duplicate id values is a frequently encountered validation error that can lead to unexpected behavior in scripting and assistive technologies. This issue can compromise both the functionality and accessibility of a website or application. When multiple elements have the same id, screen readers will only recognize the first element and skip the subsequent ones. As a result, users will miss out on the complete content.
How to fix?
Ensure that the page is free from any duplicate id values.
References
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