Errors and redirects / Error pages • Svelte Tutorial

Basic SvelteKit Errors and redirects Error pages

When something goes wrong inside a load function, SvelteKit renders an error page.

The default error page is somewhat bland. We can customize it by creating a src/routes/+error.svelte component:

src/routes/+error

<script>
	import { page } from '$app/state';
	import { emojis } from './emojis.js';
</script>

<h1>{page.status} {page.error.message}</h1>
<span style="font-size: 10em">
	{emojis[page.status] ?? emojis[500]}
</span>

<script lang="ts">
	import { page } from '$app/state';
	import { emojis } from './emojis.js';
</script>

<h1>{page.status} {page.error.message}</h1>
<span style="font-size: 10em">
	{emojis[page.status] ?? emojis[500]}
</span>

Notice that the +error.svelte component is rendered inside the root +layout.svelte. We can create more granular +error.svelte boundaries:

src/routes/expected/+error

<h1>this error was expected</h1>

This component will be rendered for /expected, while the root src/routes/+error.svelte page will be rendered for any other errors that occur.

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