mozilla-release/testing/web-platform/tests/conformance-checkers/select/autocomplete-section-novalid.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset=utf-8>
<title>autocomplete attribute is invalid</title>
</head>
<body>

    <!-- work must come before field type -->
    <select autocomplete="country section-blue">
        <option>US</option>
        <option>France</option>
        <option>UK</option>
        <option>Japan</option>
    </select>

</body>
</html>