Erste brauchbare Version

proxy.ts

@@ -0,0 +1,18 @@
+import { NextResponse, type NextRequest } from 'next/server';
+
+export async function proxy(request: NextRequest) {
+	const isPreview = request.nextUrl.searchParams.get('preview') !== null;
+
+	if (!isPreview)
+		return NextResponse.next();
+	
+	// ?preview entfernen
+	const url = request.nextUrl.clone();
+	url.searchParams.delete('preview');
+	const response = NextResponse.redirect(url);
+
+	// Cookie hinzufügen
+	response.cookies.set('payload-preview', '1');
+
+	return response;
+}