JSFiddle - React, Tailwind, and code Playground

HTML

<form action="" method="post" role="form">
    <button type="submit" name="cancel" class="btn btn-primary" onclick="return confirmDelete()">Cancel Enrollment</button>
</form>

JavaScript

function confirmDelete() {
        if (confirm("Do you really want to delete your Enrollment?")) {
            window.location.href = "includes/deleteEnrollment.php";
            return false;
        }
        return false;
    }