message: added devtool for development
diff: @@ -27,7 +27,7 @@ const isProduction = process.env.NODE_ENV === "production";
  export default {
  context: path.resolve(__dirname, "src"),
  - devtool: isProduction ? "source-map" : false,
  + devtool: isProduction ? "source-map" : "cheap-eval-source-map",
  entry: {
  polyfills: ["./content/setup"],
  playback: ["./content/commands-api"],
  