JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <head></head>
    <body>
        <form id="form1">
            <input type="hidden" name="data" value=2 />
        </form>
        <input type="submit" value="Fail 1" form="form1" />
        <br>
        <button type="submit" form="form1">Fail 2</button>
        <br>
        <input type="text" form="form1" />
        <br>
    </body>
</html>

JavaScript

$(document).on("submit", "form", function(event) {});