<input type="text" id="input">
<script>
    if (window.internals)
        internals.withUserGesture(() => { input.focus(); });

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            challenge: new Uint8Array(16),
            timeout: 100
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    navigator.credentials.get(options).then(credential => {
        // console.log("Succeeded!");
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        // console.log(error.message);
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</script>