custom.webpack.config.js

/*
var webpack = require('webpack');
var ionicWebpackFactory = require(process.env.IONIC_WEBPACK_FACTORY);

var ModuleConcatPlugin = require('webpack/lib/optimize/ModuleConcatenationPlugin');
var PurifyPlugin = require('@angular-devkit/build-optimizer').PurifyPlugin;

var useDefaultConfig = require('@ionic/app-scripts/config/webpack.config.js');

useDefaultConfig.dev.plugins = [
    ionicWebpackFactory.getIonicEnvironmentPlugin(),
    ionicWebpackFactory.getCommonChunksPlugin(),
    new webpack.NormalModuleReplacementPlugin(/typeorm$/, function (result) {
        result.request = result.request.replace(/typeorm/, "typeorm/browser");
    }),
    new webpack.ProvidePlugin({
        'window.SQL': 'sql.js/js/sql.js'
    })
]

useDefaultConfig.prod.plugins = [
    ionicWebpackFactory.getIonicEnvironmentPlugin(),
    ionicWebpackFactory.getCommonChunksPlugin(),
    new ModuleConcatPlugin(),
    new PurifyPlugin(),
    new webpack.NormalModuleReplacementPlugin(/typeorm$/, function (result) {
        result.request = result.request.replace(/typeorm/, "typeorm/browser");
    })
]

module.exports = function () {
    return useDefaultConfig;
};*/
const webpack = require('webpack');
console.log('The custom config is used');
module.exports = {
    plugins: [
        new webpack.ProvidePlugin({
            'window.SQL': 'sql.js/js/sql.js'
        }),
        new webpack.NormalModuleReplacementPlugin(/typeorm$/, function (result) {
            result.request = result.request.replace(/typeorm/, "typeorm/browser");
        })
    ],
    node: {
        fs: 'empty',
        net: 'empty',
        tls: 'empty'
    },
    optimization: {
        minimize: false
    }
};