From 65d73d56008b63081539ab36e85959954144597e Mon Sep 17 00:00:00 2001
From: Nikolay Korotkiy <sikmir@gmail.com>
Date: Mon, 18 Nov 2019 20:28:28 +0300
Subject: [PATCH] Gracefully handle missing tile service bounds in map preview

---
 handlers/templates/map.html | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/handlers/templates/map.html b/handlers/templates/map.html
index 5f2d49c..003cf17 100644
--- a/handlers/templates/map.html
+++ b/handlers/templates/map.html
@@ -84,10 +84,13 @@
 
         var layer = null;
         d3.json('./', function(tileJSON) {
-            var b = tileJSON.bounds;
+            if (tileJSON.bounds) {
+                var b = tileJSON.bounds;
+
+                // TODO: optimize and prevent jitter
+                map.fitBounds([[b[1], b[0]], [b[3], b[2]]]);
+            }
 
-            // TODO: optimize and prevent jitter
-            map.fitBounds([[b[1], b[0]], [b[3], b[2]]]);
             if (tileJSON.maxzoom && tileJSON.maxzoom < map.getZoom()){
                 map.setZoom(tileJSON.maxzoom);
             }