i18n

src/lib/utils/location.ts

@@ -1,5 +1,7 @@
 import { error, redirect } from '@sveltejs/kit';
 
+import { deLocalizeHref, localizeHref } from '$lib/paraglide/runtime';
+
 import type { GeoLocation } from '$lib/stores/settings';
 
 export const geoLocationNameToRoute = (name: string) => {
@@ -117,10 +119,12 @@ export async function resolveLocationFromRoute({
 
 	// trailingSlash is 'always' (see routes/+layout.ts), so the router serves
 	// every path with a trailing slash. Match that here or the equality check
-	// never holds and the redirect loops forever.
+	// never holds and the redirect loops forever. The comparison also has to
+	// ignore the locale prefix the URL carries, while the redirect keeps it -
+	// otherwise every localized URL would bounce back to English.
 	const canonicalPath = `${routePrefix}${buildLocationRoute(location)}/`;
-	if (event.url.pathname !== canonicalPath) {
-		throw redirect(303, canonicalPath);
+	if (deLocalizeHref(event.url.pathname) !== canonicalPath) {
+		throw redirect(303, localizeHref(canonicalPath));
 	}
 
 	return location;