Cloudflare-pages adapter doesn't support { read } from '$app/server';

[mitchell28]

Describe the bug

Get error message (Error: Cannot use read from $app/server in /og.png when using @sveltejs/adapter-cloudflare. Please ensure that your adapter is up to date and supports this feature) when building for cloudflare-pages adapter though it says it supports all sveltekit features in the docs,

Reproduction

import type { RequestHandler } from '@sveltejs/kit';
import { error } from '@sveltejs/kit';

import satori from 'satori';
import { Resvg } from '@resvg/resvg-js';
import { html as toReactNode } from 'satori-html';
import { render } from 'svelte/server';

import OgCard from './OgCard.svelte';

import NotoSans from './NotoSans-Regular.ttf';
import { read } from '$app/server';

const fontData = read(NotoSans).arrayBuffer();

const width = 1200;
const height = 648;

const generateOgImage = async (message: string) => {
	const { body } = render(OgCard, { props: { message } });
	const element = toReactNode(`${body}<style>
	div {
		font-family: 'Noto Sans';
		display: flex;
		flex-direction: column;
		font-size: 50px;
		background-color: white;
		height: 100%;
		width: 100%;
		align-items: center;
		justify-content: center;
	}
</style>`);

	const svg = await satori(element, {
		fonts: [
			{
				name: 'Noto Sans',
				data: await fontData,
				style: 'normal'
			}
		],
		height,
		width
	});

	const resvg = new Resvg(svg, {
		fitTo: {
			mode: 'width',
			value: width
		}
	});

	return resvg.render().asPng();
};

export const GET: RequestHandler = async ({ url }) => {
	try {
		const message = url.searchParams.get('message');

		if (!message) {
			throw error(400, 'Missing required parameters');
		}

		const imageBuffer = await generateOgImage(message);

		return new Response(imageBuffer, {
			headers: {
				'content-type': 'image/png',
				'cache-control': 'public, max-age=604800, immutable'
			}
		});
	} catch (e) {
		console.error('Error generating OG image:', e);
		throw error(500, 'Failed to generate image');
	}
};


### Logs

```Shell
vite v6.0.6 building SSR bundle for production...
✓ 5735 modules transformed.

node:internal/event_target:1101
  process.nextTick(() => { throw err; });
                           ^
Error: Cannot use `read` from `$app/server` in /og.png when using @sveltejs/adapter-cloudflare. Please ensure that your adapter is up to date and supports this feature.
    at check_feature (file:///path/to/project/node_modules/.pnpm/@sveltejs+kit@2.15.1_@sveltejs+vite-plugin-svelte@5.0.3_svelte@5.16.0_vite@6.0.6_@types+node@_qesdia25kriwukttr6lzpklpsa/node_modules/@sveltejs/kit/src/utils/features.js:18:11)
    at analyse (file:///path/to/project/node_modules/.pnpm/@sveltejs+kit@2.15.1_@sveltejs+vite-plugin-svelte@5.0.3_svelte@5.16.0_vite@6.0.6_@types+node@_qesdia25kriwukttr6lzpklpsa/node_modules/@sveltejs/kit/src/core/postbuild/analyse.js:130:5)
    at async MessagePort.<anonymous> (file:///path/to/project/node_modules/.pnpm/@sveltejs+kit@2.15.1_@sveltejs+vite-plugin-svelte@5.0.3_svelte@5.16.0_vite@6.0.6_@types+node@_qesdia25kriwukttr6lzpklpsa/node_modules/@sveltejs/kit/src/utils/fork.js:23:16)

Node.js v23.3.0

System Info

System:
    OS: macOS 15.2
    CPU: (11) arm64 Apple M3 Pro
    Memory: 759.97 MB / 18.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 23.3.0 - /opt/homebrew/bin/node
    npm: 10.9.0 - /opt/homebrew/bin/npm
    pnpm: 9.12.3 - /opt/homebrew/bin/pnpm
  Browsers:
    Chrome: 131.0.6778.205
    Safari: 18.2
  npmPackages:
    @fontsource-variable/inter: ^5.1.1 => 5.1.1 
    @resvg/resvg-js: ^2.6.2 => 2.6.2 
    @sveltejs/adapter-auto: ^3.3.1 => 3.3.1 
    @sveltejs/adapter-cloudflare: ^4.9.0 => 4.9.0 
    @sveltejs/enhanced-img: ^0.4.4 => 0.4.4 
    @sveltejs/kit: ^2.15.1 => 2.15.1 
    @sveltejs/vite-plugin-svelte: ^5.0.3 => 5.0.3 
    @tailwindcss/typography: ^0.5.15 => 0.5.15 
    @types/node: ^22.10.2 => 22.10.2 
    @unpic/svelte: ^0.0.56 => 0.0.56 
    autoprefixer: ^10.4.20 => 10.4.20 
    bits-ui: 1.0.0-next.64 => 1.0.0-next.64 
    clsx: ^2.1.1 => 2.1.1 
    formsnap: 2.0.0-next.1 => 2.0.0-next.1 
    lucide-svelte: ^0.464.0 => 0.464.0 
    mode-watcher: ^0.5.0 => 0.5.0 
    prettier: ^3.4.2 => 3.4.2 
    prettier-plugin-svelte: ^3.3.2 => 3.3.2 
    prettier-plugin-tailwindcss: ^0.6.9 => 0.6.9 
    satori: ^0.12.0 => 0.12.0 
    satori-html: ^0.3.2 => 0.3.2 
    super-sitemap: ^1.0.3 => 1.0.3 
    svelte: ^5.16.0 => 5.16.0 
    svelte-check: ^4.1.1 => 4.1.1 
    svelte-inview: ^4.0.4 => 4.0.4 
    svelte-meta-tags: ^4.0.4 => 4.0.4 
    svelte-sonner: ^0.3.28 => 0.3.28 
    sveltekit-superforms: ^2.22.1 => 2.22.1 
    tailwind-merge: ^2.6.0 => 2.6.0 
    tailwind-variants: ^0.3.0 => 0.3.0 
    tailwindcss: ^3.4.17 => 3.4.17 
    tailwindcss-animate: ^1.0.7 => 1.0.7 
    typescript: ^5.7.2 => 5.7.2 
    vite: ^6.0.6 => 6.0.6 
    zod: ^3.24.1 => 3.24.1

Severity

annoyance

Additional Information

No response

[eltigerchino]

related to #11674