HtmlWebpackPlugin can cause issues with loading relative path files on websites that are not located in the root directory

I have set up webpack and the HtmlWebpackPlugin to automatically include bundled js and css files in an html template.

new HtmlWebpackPlugin({
   template: 'client/index.tpl.html',
   inject: 'body',
   filename: 'index.html'
}),

This setup generates the following html file:

<!doctype html>
<html lang="en">
  <head>
    ...
    <link href="main-295c5189923694ec44ac.min.css" rel="stylesheet">
  </head>
  <body>
    <div id="app"></div>
    <script src="main-295c5189923694ec44ac.min.js"></script>
  </body>
</html>

Although this setup works well when accessing the application from the root URL (localhost:3000/), it encounters issues when accessed from other URLs like localhost:3000/items/1. This is because the relative paths of the injected files cause them to be searched for within non-existent directories.

To resolve this issue, I need to modify the configuration so that the files are injected with absolute paths. Alternatively, I may adjust my express server to handle the routing differently.

app.use(express.static(__dirname + '/../dist'));

app.get('*', function response(req, res) {
  res.sendFile(path.join(__dirname, '../dist/index.html'));
});

In essence, I need to ensure that the script tag:

<script src="main...js"></script>

includes a slash at the beginning of the source path:

<script src="/main...js"></script>

Answer №1

One way to solve this issue is by adjusting the publicPath in your webpack configuration:

output.publicPath = '/'

The HtmlWebpackPlugin relies on the publicPath to correctly prepend the URLs of the injected files.

Alternatively, you can also specify the base href within the <head> section of your HTML template to define the base URL for all relative links in your document.

<base href="http://localhost:3000/">

Answer №2

After some troubleshooting, I found that I needed to add the following:

output.publicPath: './';

This was necessary in order for the application to function correctly when not installed at the root path. At the same time, I also included:

baseUrl: './'

injected into

<base href="<%= htmlWebpackPlugin.options.metadata.baseUrl %>">

By setting both parameters, the issue was resolved seamlessly.

Answer №3

For your webpack configuration:

config.output.publicPath = ''

In the index.html file:

<base href="/specificurl/" />

Implementing these changes should resolve the issue.

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