update some tests

test/apps/export/src/routes/blog/[slug].html

@@ -1,11 +1,13 @@
-<h1>{post.title}</h1>
+<script context="module">
+	export function preload({ params }) {
+		return this.fetch(`blog/${params.slug}.json`).then(r => r.json()).then(post => {
+			return { post };
+		});
+	}
+</script>
 
 <script>
-	export default {
-		preload({ params }) {
-			return this.fetch(`blog/${params.slug}.json`).then(r => r.json()).then(post => {
-				return { post };
-			});
-		}
-	};
-</script>
+	export let post;
+</script>
+
+<h1>{post.title}</h1>