test.html

<script>
  braintree.setup(clientToken, "dropin", {
  container: "dropin-container",
  dataCollector: {
    kount: {environment: 'sandbox'},
    paypal: true
  },
  onReady: function (braintreeInstance) {
    $("#deviceData").val(braintreeInstance.deviceData); // advanced anti-fraud
  },
  onPaymentMethodReceived: function (paymentInfo) {
    $("#paymentNonce").val(paymentInfo.nonce);
    $("#updateCard").hide();
    $("#payment-modal").modal('hide');
    if(awaitingPaymentDetails) $("#droneInfo").submit();
  }
});
$(".edit-payment-info").click(function(){$("#payment-modal").modal()});
$("#payment-modal").on("hidden.bs.modal", function(){
  document.body.style.overflow = ""; // hack to handle Braintree.js bug -- emailed support
});
</script>