Error · input-image-alt
Image buttons without a name
Lighthouse / axe call it: Image buttons must have alternate text · <input type="image"> elements do not have [alt] text
A button made of an image (search, submit) is announced as "button" with no purpose.
Who it leaves out: blind people (screen readers)🔎 also SEO
How to fix it
Give each image button a short name, like "Search". Code included.
In the code
Give the <input type="image"> an alt="…" that says what the button does (e.g. alt="Search").
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Related errors
Automated testing covers roughly half of WCAG criteria; a full conformance claim also requires manual review. Technical information, not legal advice.