Development env should be set before webpack config is loaded

Author: nkbt

server.js

@@ -1,12 +1,12 @@
 'use strict';
 
+process.env.NODE_ENV = 'development';
+
 var webpack = require('webpack');
 var WebpackDevServer = require('webpack-dev-server');
 var config = require('./webpack.config');
 var port = process.env.PORT || 3000;
 
-process.env.NODE_ENV = 'development';
-
 new WebpackDevServer(webpack(config), {
   publicPath: config.output.publicPath,
   hot: true,