From 74c0adad2ce6e9f335935f462627385ea73ac8a8 Mon Sep 17 00:00:00 2001
From: Juan Carlos Arocha <arochajuan2@gmail.com>
Date: Sat, 11 Nov 2017 16:55:58 -0400
Subject: [PATCH] fix(lib): add support for requiring library in non-browser
 environments

---
 dragula.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dragula.js b/dragula.js
index 4f732311..d4cf7f4b 100644
--- a/dragula.js
+++ b/dragula.js
@@ -3,8 +3,9 @@
 var emitter = require('contra/emitter');
 var crossvent = require('crossvent');
 var classes = require('./classes');
-var doc = document;
-var documentElement = doc.documentElement;
+var inBrowser = 'undefined' !== typeof document; // Check if running in browser environmnet
+var doc = inBrowser ? document : undefined;
+var documentElement = inBrowser ? doc.documentElement : {};
 
 function dragula (initialContainers, options) {
   var len = arguments.length;