From 3fe4bd9dd78ac416622da0a815467029b7f01a14 Mon Sep 17 00:00:00 2001
From: Lorenzo Natali <lorenzo.natali@geo-solutions.it>
Date: Fri, 12 Jul 2019 12:24:12 +0200
Subject: [PATCH] prevent undefined color array exceptions

---
 .../components/TOC/fragments/settings/ThematicLayer.jsx      | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/web/client/components/TOC/fragments/settings/ThematicLayer.jsx b/web/client/components/TOC/fragments/settings/ThematicLayer.jsx
index b9bf572174..a1fa28dc7c 100644
--- a/web/client/components/TOC/fragments/settings/ThematicLayer.jsx
+++ b/web/client/components/TOC/fragments/settings/ThematicLayer.jsx
@@ -217,11 +217,14 @@ class ThematicLayer extends React.Component {
     };
 
     getColors = () => {
-        return this.props.getColors(this.props.colors, this.props.layer, this.props.colorSamples).map(({name, ...c}) => ({
+        const colors = this.props.getColors(this.props.colors, this.props.layer, this.props.colorSamples);
+        if (colors) {
+            return colors.map(({name, ...c}) => ({
             label: `global.colors.${name}`,
             name,
             ...c
         }));
+        }
     };
 
     renderError = (error, type) => {