Why does %PUBLIC_URL% not get replaced in Webpack bundled index.html? - reactjs

Question

I am trying to deploy the front-end of my web application, but when I deploy to my hosting platform (currently AWS Amplify/S3) - no content displays on the website
I created the application using create-react-app, so the project structure follows their standard (public, src folders etc.).
When I run the application locally it works fine.
From the console errors, and looking at the index.html page that is generated by webpack, it looks like it is not replacing the %PUBLIC_URL% field that should be replaced with the public directory on build.
Please can someone explain how to fix this issue?
I have included my webpack.config file below and the full repo can be found here
const path = require('path')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const config = {
entry: ['react-hot-loader/patch', './src/index.js'],
output: {
path: path.resolve(__dirname, 'build'),
filename: 'bundle.js',
},
module: {
rules: [
{
test: /\.(js|jsx)$/,
use: 'babel-loader',
exclude: /node_modules/,
},
{
test: /\.css$/,
use: ['style-loader', 'css-loader'],
},
{
test: /\.svg$/,
use: 'file-loader',
},
{
test: /\.png$/,
use: [
{
loader: 'url-loader',
options: {
mimetype: 'image/png',
},
},
],
},
{
test: /\.(ttf|eot|woff|woff2)$/,
use: 'file-loader',
},
],
},
resolve: {
extensions: ['.js', '.jsx'],
alias: {
'react-dom': '#hot-loader/react-dom',
},
},
devServer: {
contentBase: './build',
},
plugins: [
new HtmlWebpackPlugin({
template: path.resolve('./public/index.html'),
}),
],
}
module.exports = config

Answer 1

Turns out this was an issue with me trying to add a custom Webpack configuration to a create-react-app project.
I've removed the Webpack config now, and instead used the dist files created when using the create-react-app build process.