expose-loader bug

index.js

require('./test.xml');

fest.app();

package.json

{
  "name": "expose-loader-test",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "build": "webpack"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "expose-loader": "^1.0.0",
    "raw-loader": "^4.0.1",
    "webpack": "^4.44.1",
    "webpack-cli": "^3.3.12",
    "xml2js": "^0.4.23"
  }
}

test.xml

<?xml version="1.0" encoding="UTF-8"?>
<fest:template xmlns:fest="http://fest.mail.ru" context_name="json">
    <div>
        Hello, world
    </div>
</fest:template>

webpack.config.js

module.exports = {
    devtool: false,
    module: {
        rules: [
            {
                test: /\.xml$/,
                use: [
                    {
                        loader: 'expose-loader',
                        options: {
                            exposes: 'fest.app'
                        }
                    },
                    {
                        loader: 'raw-loader',
                        options: {
                            esModule: false
                        }
                    }
                ]
            }
        ]
    }
};