React, WebPack and Babel for Internet Explorer 10

2019-02-23 08:19发布

问题:

I've read multiple threads regarding similar issues and tried some propositions, but had no results.

I've followed few tutorials related to React.js and WebPack 3. As the result the application is working well on all browsers (at this moment) except IE 10 and below. The error points to bundle.js (once I'm using the configuration Nr.1):
SCRIPT1002: Syntax error and the line - const url = __webpack_require__(83);

With configuration Nr2., on local server - : SCRIPT1002: Syntax error - line with eval() And the same configuration, but running on remote server produces a bit different error:

SCRIPT5009: 'Set' is undefine

WebPack configuration Nr1.:

const HtmlWebpackPlugin = require('html-webpack-plugin');
const HtmlWebpackPluginConfig = new HtmlWebpackPlugin({
  template: './index.html',
  filename: 'index.html',
  inject: 'body'
})
module.exports = {
  entry: './index.js',
  output: {
    filename: 'bundle.js'
  },
  module: {
    loaders: [
      {
        test: /\.json$/,
        exclude: /node_modules/,
        loader: 'json-loader'
      },
      {
        test: /\.css$/,
        loader: "style-loader!css-loader"
      }
    ],
    rules: [
      {
        test: /\.js$/,
        exclude: /(node_modules)/,      
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['env', 'react']
          }
        }
      }
    ]
 },
   devServer: {   
      historyApiFallback: true,
      contentBase: './'
  },
 plugins: [HtmlWebpackPluginConfig]
}

WebPack configuration Nr2.:

const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const PreloadWebpackPlugin = require('preload-webpack-plugin');
const ScriptExtHtmlWebpackPlugin = require('script-ext-html-webpack-plugin');
const StyleExtHtmlWebpackPlugin = require('style-ext-html-webpack-plugin');
const CompressionPlugin = require('compression-webpack-plugin');
const autoprefixer = require('autoprefixer');

const staticSourcePath = path.join(__dirname, 'static');
const sourcePath = path.join(__dirname);
const buildPath = path.join(__dirname, 'dist');

module.exports = {
    stats: {
        warnings: false
    },
    devtool: 'cheap-eval-source-map',
          devServer: {    
          historyApiFallback: true,
          contentBase: './'
      },
    entry: {
        app: path.resolve(sourcePath, 'index.js')
    },
    output: {
        path: path.join(__dirname, 'dist'),
        filename: '[name].[chunkhash].js',
        publicPath: '/'
    },
    resolve: {
        extensions: ['.webpack-loader.js', '.web-loader.js', '.loader.js', '.js', '.jsx'],
        modules: [
            sourcePath,
            path.resolve(__dirname, 'node_modules')
        ]
    },
    plugins: [
        new webpack.DefinePlugin({
            'process.env.NODE_ENV': JSON.stringify('production')
        }),
        new webpack.optimize.ModuleConcatenationPlugin(),
        new webpack.optimize.CommonsChunkPlugin({
            name: 'vendor',
            filename: 'vendor.[chunkhash].js',
            minChunks: Infinity
        }),
        new webpack.LoaderOptionsPlugin({
            options: {
                postcss: [
                    autoprefixer({
                        browsers: [
                            'last 3 version',
                            'ie >= 10'
                        ]
                    })
                ],
                context: staticSourcePath
            }
        }),
        new webpack.HashedModuleIdsPlugin(),
        new HtmlWebpackPlugin({
            template: path.join(__dirname, 'index.html'),
            path: buildPath,
            excludeChunks: ['base'],
            filename: 'index.html',
            minify: {
                collapseWhitespace: true,
                collapseInlineTagWhitespace: true,
                removeComments: true,
                removeRedundantAttributes: true
            }
        }),
        new PreloadWebpackPlugin({
            rel: 'preload',
            as: 'script',
            include: 'all',
            fileBlacklist: [/\.(css|map)$/, /base?.+/]
        }),
        new webpack.NoEmitOnErrorsPlugin(),
        new CompressionPlugin({
            asset: '[path].gz[query]',
            algorithm: 'gzip',
            test: /\.js$|\.css$|\.html$|\.eot?.+$|\.ttf?.+$|\.woff?.+$|\.svg?.+$/,
            threshold: 10240,
            minRatio: 0.8
        })      
    ],
    module: {
        rules: [
            {
                test: /\.(js|jsx)$/,
                exclude: /node_modules/,
                use: {
                  loader: 'babel-loader',
                  options: {
                    presets: ['env', 'react', 'es2015'],
                    plugins: ["transform-es2015-arrow-functions"]
                  }
                },
                include: sourcePath
            },
            {                
                test: /\.css$/,
                exclude: /node_modules/,
                use: ExtractTextPlugin.extract({
                    fallback: 'style-loader',
                    use: [
                        { loader: 'css-loader', options: { minimize: true } },
                        'postcss-loader',
                        'sass-loader'
                    ]
                })
            },
            {
                test: /\.(eot?.+|svg?.+|ttf?.+|otf?.+|woff?.+|woff2?.+)$/,
                use: 'file-loader?name=assets/[name]-[hash].[ext]'
            },
            {
                test: /\.(png|gif|jpg|svg)$/,
                use: [
                    'url-loader?limit=20480&name=assets/[name]-[hash].[ext]'
                ],
                include: staticSourcePath
            }
        ]
    }
}; 

Here additionally I've added the es2015 to presets: ['env', 'react', 'es2015'] and plugins: ["transform-es2015-arrow-functions"] but it made no sense.

Well in case when the babel loader won't work at all of misconfiguration or something else, I think that the whole application won't start. I believe that something should be done with presets or their order... Need advice from experienced developer

UPDATE I've changed devtool to inline-cheap-module-source-map and got error point to overlay.js -> const ansiHTML = require('ansi-html');

回答1:

In your package.json file

change the version of webpack-dev-server to version "2.7.1" (or earlier).

"webpack-dev-server": "2.7.1"

Then do a npm install et voilà.

That solved the problem for me.

All versions after 2.7.1 gives me an error similar to yours.



回答2:

Simply add devtools : "source-map" to your Webpack config like this:

const path = require('path');
module.exports = {
  devtool: "source-map",
  entry: ['babel-polyfill', path.resolve(__dirname, './js/main.js')],
  mode: 'production',
  output: {
    path: __dirname+'/js/',
    filename: 'main-webpack.js'
  }
};

This will remove eval and change your source map to be supported by IE.

UPDATE I've changed devtool to inline-cheap-module-source-map and got error point to overlay.js -> const ansiHTML = require('ansi-html');

And to support ES6 syntax you have to compile your JavaScript code with Babel.