问Javascript确认，即使取消也可以运行表单

EN

<form class="sg-inline-form" method="post" action="">
  <input type="hidden" name="sg_customer_id" value="customerID">
  <input type="hidden" name="sg_card_id" value="cardID">
  <a href="#" class="delete-card" onclick="return confirm('Are you sure?')">Delete</a>
</form>

$('.delete-card').click(function() {
    $('.ajax-loading').show();
    const $form = $(this).parent();
    const customer = $form.find('input[name=sg_customer_id]').val();
    const card = $form.find('input[name=sg_card_id]').val();
    $.ajax({
        url: sg_obj.ajaxurl,
        data: {
            'action': 'sg_delete_payment_source',
            'customer' : customer,
            'card' : card
        },
        success:function(data) {
            // This outputs the result of the ajax request
          $('.ajax-loading').hide();
          $('#ajax-messages').addClass('alert alert-success').html('The payment source has been deleted. <a href=".">Refresh Page</a>');
        },
        error: function(errorThrown){
          $('.ajax-loading').hide();
          $('#ajax-messages').addClass('alert alert-danger').html('An error occurred.');
        }
    });  
    });