js/example-frontend-js/webpack.config.d/custom-config.js

/*
 * Copyright 2016-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

;(function (config) {
    const HtmlWebpackPlugin = require('html-webpack-plugin');

    config.output.filename = "[name].bundle.js"

    config.plugins.push(
        new HtmlWebpackPlugin({
            title: 'Kotlin Coroutines JS Example'
        })
    )

    // path from <root-build>/js/packages/example-frontend-js to src/main/web
    config.resolve.modules.push("../../../../js/example-frontend-js/src/main/web");
})(config);