Use development mode for dev server

package.json

@@ -119,7 +119,7 @@
     "Firefox ESR"
   ],
   "scripts": {
-    "serve": "gulp serve",
+    "serve": "gulp serve --development",
     "prepare": "gulp --production",
     "build:development": "gulp --development",
     "build:production": "gulp --production",

webpack.common.js

@@ -1,6 +1,5 @@
 const path = require("path");
 
-const { CleanWebpackPlugin } = require("clean-webpack-plugin");
 const CopyPlugin = require("copy-webpack-plugin");
 
 const Assets = [

webpack.dev.js

@@ -9,6 +9,7 @@ module.exports = merge(common, {
         path: path.resolve(__dirname, "dist"),
         libraryTarget: "amd-require"
     },
+    devtool: '#inline-source-map',
     module: {
         rules: [
             {

webpack.prod.js

@@ -1,4 +1,3 @@
-const path = require("path");
 const common = require("./webpack.common");
 const merge = require("webpack-merge");