Not working with Karma and Webpack 4

Hi,

I’ve a strange bug. All works correctly when I run my application in production, but I can’t run my unit tests because of your module… Removing all require('iconv-lite') in my code resolve the problem.

I’m using Webpack 4, Karma 3, ES6.

This is the error I get:

Electron 3.0.2 (Node 10.2.0) ERROR
  {
    "message": "Uncaught TypeError: __webpack_require__(...) is not a function\nat webpack:///app/node_modules/iconv-lite/lib/index.js:144:27 <- index.js:58520:48\n\nundefined",
    "str": "Uncaught TypeError: __webpack_require__(...) is not a function\nat webpack:///app/node_modules/iconv-lite/lib/index.js:144:27 <- index.js:58520:48\n\nundefined"
  }

Have you any Idea of what this could be ? Thanks

[popod]

As @Feverqwe said in #205 : adding

{
  test: /node_modules[\/\\](iconv-lite)[\/\\].+/,
  resolve: {
    aliasFields: ['main']
  }
}

to the webpack module.rules solve my problem. Thanks for the workaround !

But I think that @whitehat101 PR #203 is a better solution and hope it will be merged soon.

[rememberjack]

I ran into the same issue in an electron environment (using vue-cli-plugin-electron-builder).

I believe the problem originates from these configurations:

1. When building electron app, webpack is configured to use target ‘web’ or ‘electron-renderer’.
2. This webpack target in turn takes browser property into account. In this case, webpack ignores streams.js and extend-node.js from bundling because they are set to false in the browser property in the package.json.
3. index.js checks for node process and environment to determine if it is in a node environment. But in the case of electron, it is both a browser environment and a node environment. So iconv thinks it is in a node environment when the bundler thinks it is bundling for a web environment. This leads to __webpack_require__(...) is not a function error because streams.js is never bundled.