From 5ba978311ed6fada5d15c8fcf4024f1c55a2b234 Mon Sep 17 00:00:00 2001
From: mike-000 <49240900+mike-000@users.noreply.github.com>
Date: Fri, 28 Feb 2020 21:47:22 +0000
Subject: [PATCH] Fix "Cannot read property 'anchor' of undefined"

---
 src/ol/View.js | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/ol/View.js b/src/ol/View.js
index 27ab568daa..8a8234c354 100644
--- a/src/ol/View.js
+++ b/src/ol/View.js
@@ -609,10 +609,14 @@ class View extends BaseObject {
       if (series[0].callback) {
         animationCallback(series[0].callback, false);
       }
-      anchor = anchor ||
-        series.filter(function(animation) {
+      if (!anchor) {
+        const animations = series.filter(function(animation) {
           return !animation.complete;
-        })[0].anchor;
+        });
+        if (animations.length > 0) {
+          anchor = animations[0].anchor;
+        }
+      }
     }
     this.animations_.length = 0;
     this.cancelAnchor_ = anchor;