JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/fancybox/2.1.5/jquery.fancybox.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/fancybox/2.1.5/jquery.fancybox.min.js"></script>
<form method="get" action="something.php" id="hidden_form" style="display:none">
    <input type="text" name="name" />
</form>

<input type="button" value="Submit" id="myButton" />

JavaScript

$(document).on('submit', '#myButton', function(e) {
    e.preventDefault();
    $("hidden_form").submit();
    alert('form submitted')
});