From d3a123373e8c1fb0e5a5d6cfd223b95da93ef6e1 Mon Sep 17 00:00:00 2001
From: "nicolas.dorier" <nicolas.dorier@gmail.com>
Date: Mon, 31 Jan 2022 17:05:42 +0900
Subject: [PATCH] No error in crowdfund if canvas unavailable

---
 BTCPayServer/wwwroot/crowdfund/services/fireworks.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/BTCPayServer/wwwroot/crowdfund/services/fireworks.js b/BTCPayServer/wwwroot/crowdfund/services/fireworks.js
index 796b4e359..2cefdf103 100644
--- a/BTCPayServer/wwwroot/crowdfund/services/fireworks.js
+++ b/BTCPayServer/wwwroot/crowdfund/services/fireworks.js
@@ -1,6 +1,7 @@
 document.addEventListener("DOMContentLoaded",function (ev) {
 var c = document.getElementById("fireworks");
 var ctx = c.getContext("2d");
+if (!ctx) return;
 
 var cH;
 var cW;