Base64 in HTML <input>
An image button submits its form and also sends the click coordinates. Its picture can be a data URI.
Example
<form action="/search">
<input type="text" name="q" />
<input type="image" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAK..." alt="Search" width="16" height="16" />
</form>Notes
- The alt attribute is required for accessibility because it is the button label.
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