From 4f9589fb6b48d91338eb314c9cd1b8e0364b8cb3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ga=C3=ABl=20M=C3=A9tais?= <gael.metais@gmail.com>
Date: Thu, 26 Nov 2015 09:55:21 +0100
Subject: [PATCH] Fix rare Cannot read property '1' of null error

---
 lib/tools/colorDiff.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/tools/colorDiff.js b/lib/tools/colorDiff.js
index bf9cdae..d7217d6 100644
--- a/lib/tools/colorDiff.js
+++ b/lib/tools/colorDiff.js
@@ -46,7 +46,9 @@ var colorDiff = function() {
         var deduplicatedColors = {};
 
         parsedOffenders.forEach(function(color) {
-            deduplicatedColors[color] = color;
+            if (color !== null) {
+                deduplicatedColors[color] = color;
+            }
         });
 
         return Object.keys(deduplicatedColors).map(this.parseColor);
@@ -54,7 +56,7 @@ var colorDiff = function() {
 
     this.parseOffender = function(offender) {
         var regexResult = /^(.*) \(\d+ times\)$/.exec(offender);
-        return regexResult[1];
+        return regexResult ? regexResult[1] : null;
     };
 
     this.parseColor = function(color) {