Chrome devtools not loading svelte components files with the same name

[marcofilippozzi]

Chrome devtools don't show different svelte files with the same name in Sources. The files are in different folders obviously.
I've used the template projects as an example:

This is the webpack.config.js code:

const path = require('path');

const mode = process.env.NODE_ENV || 'development';
const prod = mode === 'production';
module.exports = {
	entry: {
		'build/bundle': ['./src/main.js']
	},
	resolve: {
		alias: {
			svelte: path.dirname(require.resolve('svelte/package.json'))
		},
		extensions: ['.mjs', '.js', '.svelte'],
		mainFields: ['svelte', 'browser', 'module', 'main']
	},
	output: {
		path: path.join(__dirname, '/public'),
		filename: '[name].js',
		chunkFilename: '[name].[id].js'
	},
	module: {
		rules: [
			{
				test: /\.svelte$/,
				use: {
					loader: 'svelte-loader',
					options: {
						compilerOptions: {
							dev: !prod
						},
						emitCss: prod,
						hotReload: !prod
					}
				}
			},
			{
				test: /\.css$/,
				use: [
					MiniCssExtractPlugin.loader,
					'css-loader'
				]
			},
			{
				// required to prevent errors from Svelte on Webpack 5+
				test: /node_modules\/svelte\/.*\.mjs$/,
				resolve: {
					fullySpecified: false
				}
			}
		]
	},
	mode,
	plugins: [
		new MiniCssExtractPlugin({
			filename: '[name].css'
		})
	],
	devtool: 'source-map',
	devServer: {
		hot: true
	}
};

This is what I see in Devtools - Sources after running the project with npm run dev:

As you see, all .svelte files are put in the top level of svelte-app, and only one of the two App.svelte is shown.

I'm sorry if this is not the right repo where to report this issue.

[marcofilippozzi]

Turns out the sourcemap was not being created correctly. Adding outputFilename: 'preprocess.bundle.js.map' solved the issue:

rules: [
        	{
				test: /\.(html|svelte)$/,
				use: {
					loader: 'svelte-loader',
					options: {
						compilerOptions: {
							dev: true,
                                                        outputFilename: 'preprocess.bundle.js.map'
						},
						emitCss: false,
						hotReload: true
					},
				},
			}
        ]