From e7f049c6391bbe2be1ee1a27a2c42714cc22dda3 Mon Sep 17 00:00:00 2001
From: Chris Needham <chris@chrisneedham.com>
Date: Wed, 14 Aug 2024 18:01:36 +0100
Subject: [PATCH] Fixed WaveformZoomview.enableAutoScroll()

See #536
---
 src/waveform-zoomview.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/waveform-zoomview.js b/src/waveform-zoomview.js
index 5231b586..0fc97ae2 100644
--- a/src/waveform-zoomview.js
+++ b/src/waveform-zoomview.js
@@ -531,6 +531,10 @@ WaveformZoomView.prototype.updateWaveform = function(frameOffset) {
 };
 
 WaveformZoomView.prototype.enableAutoScroll = function(enable, options) {
+  if (!options) {
+    options = {};
+  }
+
   this._autoScroll = enable;
 
   if (objectHasProperty(options, 'offset')) {