From b49e27c83efd1f0477d6e0659d69f1f4b005bf57 Mon Sep 17 00:00:00 2001
From: Vincent Vanwaelscappel <vincent@cubedesigners.com>
Date: Thu, 4 Sep 2025 15:31:22 +0200
Subject: [PATCH] wip #7712 @1.5

---
 js/libs/fluidbook/fluidbook.menu.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/libs/fluidbook/fluidbook.menu.js b/js/libs/fluidbook/fluidbook.menu.js
index dea04c84..b37c7442 100644
--- a/js/libs/fluidbook/fluidbook.menu.js
+++ b/js/libs/fluidbook/fluidbook.menu.js
@@ -156,7 +156,7 @@ FluidbookMenu.prototype = {
         let $this = this;
         var infos = this.fluidbook.settings.pdfLinks[uid];
         let c = this.getCaption('', 'nocaption', 'nocaption');
-        c += '<div class="content"><div class="pdf-holder"><iframe class="pdf view ' + infos.interface + '" data-width="' + infos.width + '" data-height="' + infos.height + '" data-total-height="' + infos.totalHeight + '" frameborder="0" scrolling="no" src="pdfjs/web/viewer.'+this.fluidbook.settings.htmlExtension+'?&file=../../data/links/' + infos.file + '#zoom=page-width"></iframe></div></div>';
+        c += '<div class="content"><div class="pdf-holder"><iframe class="pdf view ' + infos.interface + '" data-width="' + infos.width + '" data-height="' + infos.height + '" data-total-height="' + infos.totalHeight + '" frameborder="0" scrolling="no" src="pdfjs/web/viewer.' + this.fluidbook.settings.htmlExtension + '?&file=../../data/links/' + infos.file + '#zoom=page-width"></iframe></div></div>';
         this.viewWrap(c, 'pdf', '', 'pdf');
         if (callback != undefined) {
             callback();
@@ -1186,7 +1186,7 @@ FluidbookMenu.prototype = {
             if ($(".indexViewHolder").find('.doubleThumb:not(.simple)').length > 0) {
                 baseWidth = 230;
             }
-            var indexWidth = Math.floor(w / baseWidth) * baseWidth;
+            var indexWidth = Math.max(1, Math.floor(w / baseWidth)) * baseWidth;
 
             $(".indexViewHolder").css('width', indexWidth);
         }
-- 
2.39.5