Remove source maps and adjust targets

gulp/webpack.production.config.js

@@ -61,7 +61,8 @@ module.exports = ({
             // Display bailout reasons
             optimizationBailout: true,
         },
-        devtool: "source-map",
+        // devtool: "source-map",
+        devtool: false,
         resolve: {
             alias: {
                 "global-compression": path.resolve(__dirname, "..", "src", "js", "core", "lzstring.js"),
@@ -85,7 +86,7 @@ module.exports = ({
             minimizer: [
                 new TerserPlugin({
                     parallel: true,
-                    sourceMap: true,
+                    sourceMap: false,
                     cache: false,
                     terserOptions: {
                         ecma: es6 ? 6 : 5,
@@ -178,6 +179,10 @@ module.exports = ({
                 patterns: ["../src/js/**/*.js"],
             }),
 
+            // new webpack.SourceMapDevToolPlugin({
+            //     filename: "[name].map",
+            //     publicPath: "/v/" + utils.getRevision() + "/",
+            // }),
             // new ReplaceCompressBlocks()
             // new webpack.optimize.ModuleConcatenationPlugin()
             // new WebpackDeepScopeAnalysisPlugin()
@@ -242,13 +247,23 @@ module.exports = ({
                 },
                 {
                     test: /\.worker\.js$/,
-                    use: {
-                        loader: "worker-loader",
-                        options: {
-                            fallback: false,
-                            inline: true,
+                    use: [
+                        {
+                            loader: "worker-loader",
+                            options: {
+                                fallback: false,
+                                inline: true,
+                            },
                         },
-                    },
+                        {
+                            loader: "babel-loader?cacheDirectory",
+                            options: {
+                                configFile: require.resolve(
+                                    es6 ? "./babel-es6.config.js" : "./babel.config.js"
+                                ),
+                            },
+                        },
+                    ],
                 },
                 {
                     test: /\.md$/,