From 263294a3f593857be8db42aebfbb149dce5aab85 Mon Sep 17 00:00:00 2001
From: Raul Ochoa <rochoaf@gmail.com>
Date: Tue, 20 Sep 2016 16:19:22 +0200
Subject: [PATCH] Add metadata only for existing layers in turbocarto context

---
 lib/cartodb/controllers/map.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/cartodb/controllers/map.js b/lib/cartodb/controllers/map.js
index 552eeaca..282d468b 100644
--- a/lib/cartodb/controllers/map.js
+++ b/lib/cartodb/controllers/map.js
@@ -182,7 +182,9 @@ MapController.prototype.create = function(req, res, prepareConfigFn) {
 function addContextMetadata(layergroup, mapConfig, context) {
     if (layergroup.metadata && Array.isArray(layergroup.metadata.layers) && Array.isArray(mapConfig.layers)) {
         layergroup.metadata.layers = layergroup.metadata.layers.map(function(layer, layerIndex) {
-            layer.meta.cartocss_meta = context.turboCarto.layers[layerIndex];
+            if (context.turboCarto && Array.isArray(context.turboCarto.layers)) {
+                layer.meta.cartocss_meta = context.turboCarto.layers[layerIndex];
+            }
             return layer;
         });
     }