migrate to sveltekit 2

sites/svelte.dev/package.json

@@ -31,7 +31,7 @@
     "@sveltejs/adapter-vercel": "^5.1.0",
     "@sveltejs/kit": "^2.4.1",
     "@sveltejs/site-kit": "6.0.0-next.50",
-    "@sveltejs/vite-plugin-svelte": "^2.4.6",
+    "@sveltejs/vite-plugin-svelte": "^3.0.0",
     "@types/cookie": "^0.5.2",
     "@types/node": "^20.5.9",
     "browserslist": "^4.21.10",
@@ -54,7 +54,7 @@
     "svelte-preprocess": "^5.0.4",
     "tiny-glob": "^0.2.9",
     "typescript": "^5.2.2",
-    "vite": "^4.5.1",
+    "vite": "^5.0.0",
     "vite-imagetools": "^5.0.8"
   }
 }

sites/svelte.dev/src/routes/(authed)/repl/+page.js

@@ -9,7 +9,7 @@ export function load({ url }) {
 
 	// redirect to v2 REPL if appropriate
 	if (version && /^[^>]?[12]/.test(version)) {
-		throw redirect(302, `https://v2.svelte.dev/repl?${query}`);
+		redirect(302, `https://v2.svelte.dev/repl?${query}`);
 	}
 
 	const id = gist || example || 'hello-world';
@@ -17,5 +17,5 @@ export function load({ url }) {
 	const q = new URLSearchParams();
 	if (version) q.set('version', version);
 	if (vim) q.set('vim', vim);
-	throw redirect(301, `/repl/${id}?${q}`);
+	redirect(301, `/repl/${id}?${q}`);
 }

sites/svelte.dev/src/routes/(authed)/repl/[id]/+page.server.js

@@ -4,7 +4,7 @@ export async function load({ fetch, params, url }) {
 	const res = await fetch(`/repl/api/${params.id}.json`);
 
 	if (!res.ok) {
-		throw error(res.status);
+		error(res.status);
 	}
 
 	const gist = await res.json();

sites/svelte.dev/src/routes/(authed)/repl/api/[id].json/+server.js

@@ -73,13 +73,13 @@ export async function GET({ params }) {
 	}
 
 	if (!UUID_REGEX.test(params.id)) {
-		throw error(404);
+		error(404);
 	}
 
 	const app = await gist.read(params.id);
 
 	if (!app) {
-		throw error(404, 'not found');
+		error(404, 'not found');
 	}
 
 	return json({

sites/svelte.dev/src/routes/(authed)/repl/create.json/+server.js

@@ -4,7 +4,7 @@ import { error, json } from '@sveltejs/kit';
 
 export async function POST({ request }) {
 	const user = await session.from_cookie(request.headers.get('cookie'));
-	if (!user) throw error(401);
+	if (!user) error(401);
 
 	const body = await request.json();
 	const result = await gist.create(user, body);

sites/svelte.dev/src/routes/(authed)/repl/save/[id].json/+server.js

@@ -5,7 +5,7 @@ import { error } from '@sveltejs/kit';
 // TODO reimplement as an action
 export async function PUT({ params, request }) {
 	const user = await session.from_cookie(request.headers.get('cookie'));
-	if (!user) throw error(401, 'Unauthorized');
+	if (!user) error(401, 'Unauthorized');
 
 	const body = await request.json();
 	await gist.update(user, params.id, body);

sites/svelte.dev/src/routes/auth/login/+server.js

@@ -11,7 +11,7 @@ export const GET = client_id
 					redirect_uri: `${url.origin}/auth/callback`
 				}).toString();
 
-			throw redirect(302, Location);
+			redirect(302, Location);
 		}
 	: () =>
 			new Response(

sites/svelte.dev/src/routes/blog/[slug]/+page.server.js

@@ -6,7 +6,7 @@ export const prerender = true;
 export async function load({ params }) {
 	const post = await get_processed_blog_post(await get_blog_data(), params.slug);
 
-	if (!post) throw error(404);
+	if (!post) error(404);
 
 	// forgive me — terrible hack necessary to get diffs looking sensible
 	// on the `runes` blog post

sites/svelte.dev/src/routes/blog/[slug]/card.png/+server.js

@@ -17,7 +17,7 @@ const font_data = await read(OverpassRegular).arrayBuffer();
 export async function GET({ params }) {
 	const post = await get_processed_blog_post(await get_blog_data(), params.slug);
 
-	if (!post) throw error(404);
+	if (!post) error(404);
 
 	// @ts-ignore
 	const result = Card.render({ post });

sites/svelte.dev/src/routes/blog/the-easiest-way-to-get-started/+page.js

@@ -2,5 +2,5 @@ import { redirect } from '@sveltejs/kit';
 import { dev } from '$app/environment';
 
 export function load() {
-	throw redirect(dev ? 307 : 308, '/docs');
+	redirect(dev ? 307 : 308, '/docs');
 }

sites/svelte.dev/src/routes/docs/[slug]/+page.server.js

@@ -6,7 +6,7 @@ export const prerender = true;
 export async function load({ params }) {
 	const processed_page = await get_parsed_docs(await get_docs_data(), params.slug);
 
-	if (!processed_page) throw error(404);
+	if (!processed_page) error(404);
 
 	return { page: processed_page };
 }

sites/svelte.dev/src/routes/examples/+page.js

@@ -3,5 +3,5 @@ import { redirect } from '@sveltejs/kit';
 export const prerender = true;
 
 export function load() {
-	throw redirect(301, 'examples/hello-world');
+	redirect(301, 'examples/hello-world');
 }

sites/svelte.dev/src/routes/examples/api/[slug].json/+server.js

@@ -12,7 +12,7 @@ export const GET = ({ params }) => {
 			.map((example) => example.slug)
 	);
 
-	if (!examples.has(params.slug)) throw error(404, 'Example not found');
+	if (!examples.has(params.slug)) error(404, 'Example not found');
 
 	return json(get_example(examples_data, params.slug));
 };

sites/svelte.dev/src/routes/faq/+server.js

@@ -3,5 +3,5 @@ import { redirect } from '@sveltejs/kit';
 export const prerender = true;
 
 export function GET() {
-	throw redirect(308, '/docs/faq');
+	redirect(308, '/docs/faq');
 }

sites/svelte.dev/src/routes/roadmap/+page.js

@@ -1,8 +1,5 @@
 import { redirect } from '@sveltejs/kit';
 
 export function load() {
-	throw redirect(
-		307,
-		'https://docs.google.com/document/d/1IA9Z5rcIm_KRxvh_L42d2NDdYRHZ72MfszhyJrsmf5A'
-	);
+	redirect(307, 'https://docs.google.com/document/d/1IA9Z5rcIm_KRxvh_L42d2NDdYRHZ72MfszhyJrsmf5A');
 }

sites/svelte.dev/src/routes/tutorial/+page.server.js

@@ -3,5 +3,5 @@ import { redirect } from '@sveltejs/kit';
 export const prerender = true;
 
 export function load() {
-	throw redirect(301, '/tutorial/basics');
+	redirect(301, '/tutorial/basics');
 }

sites/svelte.dev/src/routes/tutorial/[slug]/+page.server.js

@@ -8,14 +8,14 @@ import { error, redirect } from '@sveltejs/kit';
 export const prerender = true;
 
 export async function load({ params }) {
-	if (params.slug === 'local-transitions') throw redirect(307, '/tutorial/global-transitions');
+	if (params.slug === 'local-transitions') redirect(307, '/tutorial/global-transitions');
 
 	const tutorial_data = await get_tutorial_data();
 	const tutorials_list = get_tutorial_list(tutorial_data);
 
 	const tutorial = await get_parsed_tutorial(tutorial_data, params.slug);
 
-	if (!tutorial) throw error(404);
+	if (!tutorial) error(404);
 
 	return {
 		tutorials_list,