From 86f23dcfc0df300bc9e20ae7d5efceaf427a9d74 Mon Sep 17 00:00:00 2001
From: ansuz <ansuz@transitiontech.ca>
Date: Wed, 1 Sep 2021 18:08:03 +0530
Subject: [PATCH] guarantee async behaviour when creating thumbnails

---
 www/common/common-thumbnail.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/www/common/common-thumbnail.js b/www/common/common-thumbnail.js
index 01e89e5d1..e3b328dc1 100644
--- a/www/common/common-thumbnail.js
+++ b/www/common/common-thumbnail.js
@@ -196,7 +196,7 @@ define([
         reader.readAsText(blob);
     };
     Thumb.fromBlob = function (blob, _cb) {
-        var cb = Util.once(_cb);
+        var cb = Util.once(Util.mkAsync(_cb));
         // The blob is already in memory, it should be super-fast to make a thumbnail
         // ==> 1s timeout
         setTimeout(function () {