From 468bd829f2b07d4666392d2f88deef4373b7c2ce Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Wed, 24 Apr 2019 17:30:23 +0200
Subject: [PATCH] Add `passive: false` to the `wheel` event listener, to
 work-around broken default behaviour in Chrome 73 and above (issue 10761)

Let's try this, since it doesn't appear to break scrolling/zooming in IE11.
---
 web/app.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/app.js b/web/app.js
index d000b2469..046d23002 100644
--- a/web/app.js
+++ b/web/app.js
@@ -1399,7 +1399,7 @@ let PDFViewerApplication = {
     };
 
     window.addEventListener('visibilitychange', webViewerVisibilityChange);
-    window.addEventListener('wheel', webViewerWheel);
+    window.addEventListener('wheel', webViewerWheel, { passive: false, });
     window.addEventListener('click', webViewerClick);
     window.addEventListener('keydown', webViewerKeyDown);
     window.addEventListener('resize', _boundEvents.windowResize);