From 48b3a20076e857546fc4c908275d77f5378de295 Mon Sep 17 00:00:00 2001
From: Jaifroid <egk10@cam.ac.uk>
Date: Fri, 31 Jan 2020 08:27:35 +0000
Subject: [PATCH] Fix critical error switching to non-Roman alphabet

Former-commit-id: 5139a4b2e3e534349735b18ed9beb8a5da5105c2 [formerly 7b3ef6c92d82c07a9774f4e0e26be61f4f1606c9]
Former-commit-id: 8530c40e313a85881663c132642746cadf60ab47
---
 www/js/app.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/www/js/app.js b/www/js/app.js
index 233138e7..05bd1ac9 100644
--- a/www/js/app.js
+++ b/www/js/app.js
@@ -700,8 +700,10 @@ define(['jquery', 'zimArchiveLoader', 'uiUtil', 'util', 'utf8', 'images', 'cooki
             for (i = 0; i < fileVersionDivs.length; i++) {
                 fileVersionDivs[i].innerHTML = i ? params.fileVersion.replace(/\s+.+$/, "") : params.fileVersion;
             }
-            document.getElementById('logUpdate').innerHTML = document.getElementById('update').innerHTML.match(/<ul[^>]*>[\s\S]+/i);
-            document.getElementById('logFeatures').innerHTML = document.getElementById('features').innerHTML;
+            var update = document.getElementById('update');
+            if (update) document.getElementById('logUpdate').innerHTML = update.innerHTML.match(/<ul[^>]*>[\s\S]+/i);
+            var features = document.getElementById('features');
+            if (features) document.getElementById('logFeatures').innerHTML = features.innerHTML;
             // Show the selected content in the page
             $('#about').hide();
             $('#configuration').hide();