WebSocket connection to 'ws://localhost:4000/sockjs-node/612/2pdjfv15/websocket' failed: Connection closed before receiving a handshake response error

[chintuboy]

I'M using Browser Sync with webpack-dev-server, And facing the issue while using browser sync..!! only form fill up is working, click, scroll is not working in browser sync, and there is no any compile time error occurring, But above things are not working..!! Here is my "Webpack.dev.js" file, So what is wrong over here..?

const helpers = require('./helpers');
const buildUtils = require('./build-utils');
const webpackMerge = require('webpack-merge'); 
const commonConfig = require('./webpack.common.js');

const LoaderOptionsPlugin = require('webpack/lib/LoaderOptionsPlugin');
const NamedModulesPlugin = require('webpack/lib/NamedModulesPlugin');
const EvalSourceMapDevToolPlugin = require('webpack/lib/EvalSourceMapDevToolPlugin');
const BrowserSyncPlugin = require('browser-sync-webpack-plugin');

module.exports = function (options) {
  const ENV = process.env.ENV = process.env.NODE_ENV = 'development';
  const HOST = process.env.HOST || 'localhost';
  const PORT = process.env.PORT || 3000;

  const METADATA = Object.assign({}, buildUtils.DEFAULT_METADATA, {
    host: HOST,
    port: PORT,
    ENV: ENV,
    HMR: helpers.hasProcessFlag('hot'),
    PUBLIC: process.env.PUBLIC_DEV || HOST + ':' + PORT
  });

  return webpackMerge(commonConfig({ env: ENV, metadata: METADATA  }), {

    output: {


      path: helpers.root('dist'),


      filename: '[name].bundle.js',


      sourceMapFilename: '[file].map',


      chunkFilename: '[id].chunk.js',

      library: 'ac_[name]',
      libraryTarget: 'var',
    },

    module: {

      rules: [


        {
          test: /\.css$/,
          use: ['style-loader', 'css-loader'],
          include: [helpers.root('src', 'styles')]
        },

        {
          test: /\.scss$/,
          use: ['style-loader', 'css-loader', 'sass-loader'],
          include: [helpers.root('src', 'styles')]
        },

      ]

    },

    plugins: [
      new EvalSourceMapDevToolPlugin({
        moduleFilenameTemplate: '[resource-path]',
        sourceRoot: 'webpack:///'
      }),


      new NamedModulesPlugin(),


      new LoaderOptionsPlugin({
        debug: true,
        options: { }
      }),

      new BrowserSyncPlugin({
        // browse to http://localhost:3000/ during development,
        host: 'localhost',
        port: 4000,
        proxy: 'http://localhost:3000'
      },
      {
        reload: false
      })
    ],

    devServer: {
      port: METADATA.port,
      host: METADATA.host,
      hot: METADATA.HMR,
      public: METADATA.PUBLIC,
      historyApiFallback: true,
      watchOptions: {

        ignored: /node_modules/
      },

      setup: function(app) {
        // For example, to define custom handlers for some paths:
        // app.get('/some/path', function(req, res) {
        //   res.json({ custom: 'response' });
        // });
      },
    },

    node: {
      global: true,
      crypto: 'empty',
      process: true,
      module: false,
      clearImmediate: false,
      setImmediate: false,
      fs: 'empty'
    }

  });
};

[karneaud]

+1

[Va1]

hi,

sorry for delay.

i am not aware of what can be the cause and w/o having your code i surely can not debug the issue. also, for the majority of other codebases it apparently does work.

if it is still an issue, please attempt rebuilding the setup afresh step-by-step to see the point of failure, because, as practice shows, it is usually connected with other parts of the particular setup and is not obvious. otherwise, close this issue.

cheers