From 71c020762fa57a8f95bce021b90eb807dfc8d09f Mon Sep 17 00:00:00 2001
From: Peter Kerpedjiev <pkerpedjiev@gmail.com>
Date: Sun, 1 Nov 2020 08:41:24 -0500
Subject: [PATCH] Fix error when tile.tileData contains an error

---
 src/Arcs1DTrack.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/Arcs1DTrack.js b/src/Arcs1DTrack.js
index f6877c2..cf47937 100644
--- a/src/Arcs1DTrack.js
+++ b/src/Arcs1DTrack.js
@@ -13,11 +13,13 @@ const Arcs1DTrack = (HGC, ...args) => {
     renderTile(tile) {}
 
     maxWidth() {
-      let maxWidth = 0;
+      let maxWidth = 1;
 
       for (const tile of Object.values(this.fetchedTiles)) {
-        for (const item of tile.tileData) {
-          maxWidth = Math.max(maxWidth, item.fields[2] - item.fields[1]);
+        if (tile.tileData && !tile.tileData.error) {
+          for (const item of tile.tileData) {
+            maxWidth = Math.max(maxWidth, item.fields[2] - item.fields[1]);
+          }
         }
       }