From: Vincent Vanwaelscappel <vincent@cubedesigners.com>
Date: Fri, 27 Jun 2025 14:12:17 +0000 (+0200)
Subject: wip #7617 @0:20
X-Git-Url: http://git.cubedesigners.com/?a=commitdiff_plain;h=b74e4cb8f8cb4c247518fc36359f897d9580f832;p=fluidbook-html5.git

wip #7617 @0:20
---

diff --git a/js/libs/fluidbook/fluidbook.resize.js b/js/libs/fluidbook/fluidbook.resize.js
index f38ccd84..6ed1a9a8 100644
--- a/js/libs/fluidbook/fluidbook.resize.js
+++ b/js/libs/fluidbook/fluidbook.resize.js
@@ -440,7 +440,7 @@ FluidbookResize.prototype = {
     },
 
     checkSliderVisibility: function () {
-        if (this.reduceVerticalMargins() && this.fluidbook.settings.mobileHideSliderIfOverlaps && ($("#slider").get(0).getBoundingClientRect().top - $("#fluidbook").get(0).getBoundingClientRect().bottom < 5)) {
+        if (this.reduceVerticalMargins() && this.fluidbook.settings.mobileHideSliderIfOverlaps && ($("#slider").length > 0 && ($("#slider").get(0).getBoundingClientRect().top - $("#fluidbook").get(0).getBoundingClientRect().bottom < 5))) {
             $('body').addClass('slider-hidden');
         } else {
             $('body').removeClass('slider-hidden');