<!doctype html>
<html>

	<head>
		<title>React + Webpack example with hot reloading</title>
		<base href="/">
		<meta charset="utf-8">
		<link href="https://fonts.googleapis.com/css?family=Roboto:400,300,500" rel="stylesheet" type="text/css">
	</head>

	<body>
		<div id="root"></div>
		<script src="assets/bundle.js"></script>
	</body>

</html>
<!doctype html>
<html>

	<head>
		<title>React + Webpack example with hot reloading</title>
		<meta charset="utf-8">
		<link href="https://fonts.googleapis.com/css?family=Roboto:400,300,500" rel="stylesheet" type="text/css">
	</head>

	<body>
		<div id="root"></div>
		<script src="assets/bundle.js"></script>
	</body>

</html>

Remove <base href="/"> because of react-router
Remove <base href="/"> because of react-router
