diff --git a/source/webpack.prod.js b/source/webpack.prod.js
index 41e70f647..d31930698 100644
--- a/source/webpack.prod.js
+++ b/source/webpack.prod.js
@@ -87,6 +87,8 @@ module.exports = {
 			navigateFallback: '/fallback',
 			navigateFallbackWhitelist: [/^\/[^_]+$/], // fallback for anything that doesn't start with
 			navigateFallbackBlacklist: [
+				// The service worker should ignore source maps generated by Webpack
+				/.*.map$/,
 				/.*\?s=.*$/,
 				/^\/stats/,
 				/^\/robots\.txt$/,
@@ -113,11 +115,7 @@ module.exports = {
 		new PrerenderSPAPlugin({
 			...prerenderConfig(),
 			outputDir: path.resolve('dist', 'prerender', 'mon-entreprise'),
-			routes: [
-				'/',
-				'/simulateurs/salarié',
-				'/iframes/simulateur-embauche'
-			],
+			routes: ['/', '/simulateurs/salarié', '/iframes/simulateur-embauche'],
 			indexPath: path.resolve('dist', 'mon-entreprise.html')
 		})
 	]