const CompressionPlugin = require("compression-webpack-plugin");

module.exports = {
  devServer: {
    proxy: {
      "/": {
        target: process.env.BASE_URL,
        onProxyRes: proxyRes => {
          if (proxyRes.headers["set-cookie"]) {
            // Need to remove 'Secure' flag on set-cookie value so browser
            // can create cookie for local development
            const cookies = proxyRes.headers["set-cookie"].map(cookie =>
              cookie.replace(/; secure/gi, "")
            );
            proxyRes.headers["set-cookie"] = cookies;
          }
        }
      }
    },
    port: 8000
  },
  productionSourceMap: false,
  configureWebpack: config => {
    if (process.env.NODE_ENV === "production") {
      config.plugins.push(
        new CompressionPlugin({
          deleteOriginalAssets: true
        })
      );
    }
  },
  chainWebpack: config => {
    if (process.env.NODE_ENV === "production") {
      config.plugins.delete("prefetch");
      config.plugins.delete("preload");
    }
  }
};