From cd921f6eaeba0e74182a3765bb9b09b80d3bedfc Mon Sep 17 00:00:00 2001
From: Scott Humphrey <scott.humphrey@whizzeducation.com>
Date: Mon, 15 Feb 2021 15:45:19 +0000
Subject: [PATCH] print is async(). In Firefox, cleanUp was resulting in a
 blank page. This small delay fixes it.

---
 src/js/print.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/js/print.js b/src/js/print.js
index e09e69f..18ee919 100644
--- a/src/js/print.js
+++ b/src/js/print.js
@@ -74,7 +74,7 @@ function performPrint (iframeElement, params) {
       iframeElement.style.left = '-1px'
     }
 
-    cleanUp(params)
+    setTimeout(() => cleanUp(params), 100)
   }
 }