From 6019c0108842a8b2c798620e7b2ce66c5631cf79 Mon Sep 17 00:00:00 2001
From: JackSteele24 <jackrsteele04@gmail.com>
Date: Wed, 24 Apr 2024 15:17:18 -0400
Subject: [PATCH] feat: Preventing the entire page from scrolling when sidebar
 auto-scrolls

---
 .../course/sidebar/sidebars/outline/OutlineSidebar.jsx   | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/courseware/course/sidebar/sidebars/outline/OutlineSidebar.jsx b/src/courseware/course/sidebar/sidebars/outline/OutlineSidebar.jsx
index ee0660c514..304fef863f 100644
--- a/src/courseware/course/sidebar/sidebars/outline/OutlineSidebar.jsx
+++ b/src/courseware/course/sidebar/sidebars/outline/OutlineSidebar.jsx
@@ -17,6 +17,15 @@ function OutlineSidebar({
     unitId,
   } = useContext(SidebarContext);
   const outlineUrl = `${getConfig().SIDEBAR_MFE_BASE_URL}/${courseId}/${unitId}`;
+  const savedScrollPosition = window.scrollY;
+  let allowScroll = true;
+  window.addEventListener('scroll', () => {
+    if (allowScroll) {
+      window.scrollTo(0, savedScrollPosition);
+    }
+    allowScroll = false;
+  });
+
   return (
     <SidebarBase
       title={intl.formatMessage(messages.outlineTitle)}