diff --git a/apps/common/main/lib/util/htmlutils.js b/apps/common/main/lib/util/htmlutils.js
index b083150245..897d81bed8 100644
--- a/apps/common/main/lib/util/htmlutils.js
+++ b/apps/common/main/lib/util/htmlutils.js
@@ -106,7 +106,7 @@ let svg_icons = ['./resources/img/iconssmall@2.5x.svg',
 window.Common = {
     Utils: {
         injectSvgIcons: function () {
-            if ( isIEBrowser === true ) return;
+            if ( window.isIEBrowser === true ) return;
 
             let runonce;
             // const el = document.querySelector('div.inlined-svg');
diff --git a/apps/spreadsheeteditor/main/index_internal.html b/apps/spreadsheeteditor/main/index_internal.html
index 30833d5582..2af4f623f1 100644
--- a/apps/spreadsheeteditor/main/index_internal.html
+++ b/apps/spreadsheeteditor/main/index_internal.html
@@ -133,6 +133,7 @@
 
         var userAgent = navigator.userAgent.toLowerCase(),
             check = function(regex){ return regex.test(userAgent); },
+            isIEBrowser = !check(/opera/) && (check(/msie/) || check(/trident/)),
             stopLoading = false;
         if (!check(/opera/) && (check(/msie/) || check(/trident/))) {
             var m = /msie (\d+\.\d+)/.exec(userAgent);