From 84018a5caa52d21923f7d9f6895af77dbde45ea3 Mon Sep 17 00:00:00 2001
From: Rockstar Developer <5191402+rockstardev@users.noreply.github.com>
Date: Tue, 16 Oct 2018 21:49:30 -0500
Subject: [PATCH] Bugfixing race condition for QR code switch (#335)

Ref: #334
---
 BTCPayServer/wwwroot/checkout/js/core.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/BTCPayServer/wwwroot/checkout/js/core.js b/BTCPayServer/wwwroot/checkout/js/core.js
index aeddb7574..c017672e2 100644
--- a/BTCPayServer/wwwroot/checkout/js/core.js
+++ b/BTCPayServer/wwwroot/checkout/js/core.js
@@ -72,6 +72,11 @@ function onDataCallback(jsonData) {
     }
 
     // restoring qr code view only when currency is switched
+    if (jsonData.paymentMethodId === srvModel.paymentMethodId &&
+        checkoutCtrl.scanDisplayQr === "") {
+        checkoutCtrl.scanDisplayQr = jsonData.invoiceBitcoinUrlQR;
+    }
+
     if (jsonData.paymentMethodId === srvModel.paymentMethodId) {
         $(".payment__currencies").show();
         $(".payment__spinner").hide();