Modern config only for local dev, fixing multi-compiler issues with HRM

Reference “Multi-compiler mode, hot-update.json 404” -> webpack/webpack-dev-server#2355

Signed-off-by: Andrew Welch <[email protected]>

Author: khalwat

webpack.dev.js

@@ -6,7 +6,7 @@ const path = require('path');
 const webpack = require('webpack');
 
 // webpack plugins
-const DashboardPlugin = require('webpack-dashboard/plugin');
+var DashboardPlugin = require('webpack-dashboard/plugin');
 
 // config files
 const common = require('./webpack.common.js');
@@ -64,7 +64,6 @@ const configurePostcssLoader = () => {
             {
                 loader: 'css-loader',
                 options: {
-                    url: false,
                     importLoaders: 2,
                     sourceMap: true
                 }
@@ -75,7 +74,10 @@ const configurePostcssLoader = () => {
             {
                 loader: 'postcss-loader',
                 options: {
-                    sourceMap: true
+                    sourceMap: true,
+                    config: {
+                        path: path.resolve(__dirname),
+                    }
                 }
             }
         ]