Merge pull request #37 from vim-jp-radio/feature/fix-adapter-options

svelte.config.tsにあったfallback optionを修正し、代わりにエラーページを追加

src/routes/+error.svelte

@@ -0,0 +1,13 @@
+<script>
+	import { page } from '$app/stores';
+</script>
+
+<!-- eslint-disable svelte/valid-compile -->
+<!-- svelte-ignore element_invalid_self_closing_tag -->
+
+{#if $page.error != null}
+	<div class='grid place-content-center place-items-center'>
+		<enhanced:img alt='some alt text' src='$/assets/404.png' />
+		<h1>{$page.error.message}</h1>
+	</div>
+{/if}

src/routes/404/+page.svelte

@@ -0,0 +1,5 @@
+<script lang='ts'>
+	import ErrorPage from '$/routes/+error.svelte';
+</script>
+
+<ErrorPage />

svelte.config.js

@@ -22,9 +22,7 @@ const config = {
 		// If your environment is not supported, or you settled on a specific environment, switch out the adapter.
 		// See https://kit.svelte.dev/docs/adapters for more information about adapters.
 		adapter: adapter({
-			// default options are shown. On some platforms
-			// these options are set automatically — see below
-			fallback: 'index.html',
+			fallback: '404.html',
 		}),
 
 		typescript: {