Odd output with webpack-dev-server

While I’m sure that building a .js entry point with webpack-dev-server is probably an odd use case (testing in an external .html that pulls in the built library), I figured I’d report the bug I came across anyway.

I have a code bundle that just has a single default export. When building normally with webpack, I get the expected output:

export default LIB['default'];

But when building with webpack-dev-server (no configuration changes), I get an unexpected output:

export default LIB;
export { LIB };

export default LIB;
export { LIB };

export default LIB['default'];

[andrewstart]

It seems to work fine for me, the dev server runs fine and the normal build continues to build correctly. I did have to correct your skipModule function though:

skipModule(fileName, module) {
    return /[\\\/]webpack(-dev-server)?[\\\/]/.test(fileName);
}

[riovir]

Here you go: https://github.com/riovir/esm-webpack-plugin-i15-reprod

I’ve added some extra hoops, such as code splitting the bundled library to indicate it would still work if that pesky webpack-generated, extra HMR module wouldn’t topple the plugin over.

If the codebase is too bulky, don’t hesitate to ask for a simpler one!