From 5e13661fda914a89678b0d27b85542ac158e00ba Mon Sep 17 00:00:00 2001
From: Abe Jellinek <jellinek@berkeley.edu>
Date: Fri, 26 Apr 2024 10:21:30 -0400
Subject: [PATCH] Fix snapshot breakage on web

Don't pass our onSetZoom wrapper when the host didn't implement that
function.
---
 src/common/reader.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/common/reader.js b/src/common/reader.js
index 994fafd8..0dc3ce03 100644
--- a/src/common/reader.js
+++ b/src/common/reader.js
@@ -737,9 +737,9 @@ class Reader {
 			this._keyboardManager.handleViewKeyUp(event);
 		};
 
-		let onSetZoom = (iframe, zoom) => {
+		let onSetZoom = this._onSetZoom && ((iframe, zoom) => {
 			this._onSetZoom(iframe, zoom);
-		};
+		});
 
 		let data;
 		if (this._type === 'pdf') {