addBanner: true breaks source maps when using UglifyJsPlugin about license-webpack-plugin HOT 7 CLOSED

        new LicenseWebpackPlugin({
            licenseInclusionTest: (licenseType) => {
                return true;
            },
            unacceptableLicenseTest: (licenseType) => {
                return /GPL/i.test(licenseType);
            },
            handleUnacceptableLicense: (packageName, licenseType) => {
                throw new Error(`${packageName} has unacceptable license type: ${licenseType}`);
            },
            handleMissingLicenseText: (packageName, licenseType) => {
                console.warn(`Cannot find license for ${packageName}`);
                return 'UNKNOWN';
            },
            perChunkOutput: false,
            licenseTemplateDir: 'templates/licenses/',
            addBanner: true,
            renderBanner: (filename, modules) => {
                return '/*! licenses are at ' + filename + '*/';
            },
            additionalModules: [
                packageDirInfo('babel-polyfill'),
                packageDirInfo('font-awesome'),
                packageDirInfo('gettext-parser'),
                packageDirInfo('modernizr'),
                packageDirInfo('player.js'),
                packageDirInfo('plotly.js'),
            ],
            licenseTypeOverrides: {
                'font-awesome': 'MIT',
                'xmldom': 'MIT',
            },
        }),