server.js

var webpack = require('webpack');
var WebpackDevServer = require('webpack-dev-server');
var config = require('./webpack.config');

config.entry.app.unshift("webpack-dev-server/client?http://localhost:9090", "webpack/hot/dev-server");

config.devtool = 'eval';

var proxy = {
    "/api/*": {target: "https://python-china.org", host: "python-china.org"},
    "/session*": {target: "https://python-china.org", host: "python-china.org"},
};

var app = new WebpackDevServer(webpack(config), {
    publicPath: config.output.publicPath,
    historyApiFallback: true,
  	proxy: proxy,
    hot: true,
});

app.listen(9090, 'localhost', function (err, result) {
    console.log('Listening http://localhost:9090');
    if (err) {
        console.log(err);
    }
});