如何使Webpack忽略组件的模板？

Question

我在Angular4 / Angular Material 2 / TypeScript项目中使用Webpack 3来捆绑js代码。我正在尝试基于此示例实现延迟加载：https://github.com/vsavkin/router_lazyloading 我的项目使用Angular Components和外部模板（templateUrl而不是template）。 Webpack试图将它们包含在捆绑包中，但我想将它们保留在外部。如何让Webpack停止捆绑模板？

我的Webpack配置：

"use strict";

const path = require("path");
const ngtools = require("@ngtools/webpack");
const webpack = require("webpack");
const CommonsChunkPlugin = webpack.optimize.CommonsChunkPlugin;

module.exports = {
    devtool: "source-map",
    context: path.resolve(__dirname, "out"),
    entry: {
        app: [path.resolve(__dirname, "out", "app")],
        vendor: [path.resolve(__dirname, "out", "vendor")]
    },
    output: {
        path: path.resolve(__dirname, "out", "public", "assets", "js"),
        filename: "[name].js",
        publicPath: "/assets/js/"
    },
    module: {
        loaders: [
            { test: /\.js$/, exclude: /node_modules/, loader: "@ngtools/webpack" }
        ]
    },
    resolve: {
        extensions: [".ts", ".js"]
    },
    plugins: [
        new ngtools.AotPlugin({
            tsConfigPath: "./tsconfig.json",
            mainPath: "./app.ts"
        }),
        new CommonsChunkPlugin({
            name: "vendor"
        }),
        new CommonsChunkPlugin({
            async: true
        })
    ]
};

我错过了什么？