Optional-param i18n

This page lives at /i18n/[[lang]] — the locale is an optional route parameter, so the same page serves both /i18n and /i18n/sv. The breadcrumb resolver reads page.params.lang to pick a translated label — no options needed.

Try both languages

• /i18n — default (English)
• /i18n/sv — Swedish

Current language: en (param absent — fell back to the default)

Current trail: Svelte Crumbs / Greetings

The breadcrumb export

When the param is absent the crumb still resolves — a [[lang]] segment consumes zero or one URL segments, and the crumb's URL is the concrete pathname either way, so the trail keeps pointing at the language you are on.

<script module lang="ts">
	const labels: Record<string, string> = {
	  en: 'Greetings',
	  sv: 'Hälsningar'
	};
	
	export const breadcrumb: BreadcrumbMeta = async (page) => ({
	  label: labels[page.params.lang ?? 'en'] ?? labels.en
	});
</script>

For locale-prefix apps (Paraglide & friends) see the Internationalized routes docs.