在React应用中使用打字稿时如何设置源地图

Question

我正在构建一个用打字稿编写的小型react应用程序。这是通过webpack捆绑到javascript上的。

webpack

module.exports = [
{
    entry: {
        app1: ["./src/public/app1/index.tsx"],
        app2: ["./src/public/app2/index.tsx"],

    },
    mode: NODE_ENV,
    watch: NODE_ENV === 'development',
    output: {

        filename: "[name]/bundle.js",
        path: path.resolve(__dirname, 'build/public/'),
    },

    // Enable sourcemaps for debugging webpack's output.
    devtool: "source-map",

    resolve: {
        // Add '.ts' and '.tsx' as resolvable extensions.
        extensions: [".ts", ".tsx", ".js", ".json", ".css", ".scss"]
    },

    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: 'ts-loader',
                exclude: /node_modules/
            },

            // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
            { enforce: "pre", test: /\.js$/, loader: "source-map-loader" },

            { test: /\.scss$/, use: [ 
                { loader: "style-loader" },  // to inject the result into the DOM as a style block
                { loader: "css-loader", options: { modules: true } },  // to convert the resulting CSS to Javascript to be bundled (modules:true to rename CSS classes in output to cryptic identifiers, except if wrapped in a :global(...) pseudo class)
                { loader: "sass-loader" },  // to convert SASS to CSS
            ] }, 
        ]
    },
    "plugins": [
        // new CleanWebpackPlugin(),
        new CopyWebpackPlugin([
            {
                from: "src/public/app1/index.html",
                to: "app1"
            },
            {
                from: "src/public/app2/index.html",
                to: "app2"
            },
        ]),
    ],



    // When importing a module whose path matches one of the following, just
    // assume a corresponding global variable exists and use that instead.
    // This is important because it allows us to avoid bundling all of our
    // dependencies, which allows browsers to cache those libraries between builds.
    externals: {
        // "react": "React",
        // "react-dom": "ReactDOM"
    }
}]

我遵循了本指南-https://www.typescriptlang.org/docs/handbook/react-&-webpack.html

但是，如下面的图片所示，源地图无法正常工作。

您会看到App.tsx不可读，并且源地图也不是我所期望的。