[svelte-triage-bot]

• The Vite dev and preview setup introduced in breaking: Move cloudflare bindings from platform to cloudflare:workers #16754 eagerly created a Wrangler platform proxy but never released its Miniflare handles; the global is required so cloudflare:workers, Request.cf, and caches share one proxy.
• Earlier anti-hang fixes fix: prevent vitest from hanging #12830 and fix: prevent Vitest from hanging #13373 deferred the old platform emulation, but the new virtual-module architecture must initialize the proxy during server setup.
• Wrap the owning server's existing close() to close Vite concurrently with one memoized disposal and only clear the still-owned global; reject closeBundle because Vite 8.2 preview does not invoke it and reject Vite 8.3 close hooks because the adapter supports Vite 8.0+.
• Cover actual middleware-mode Vite dev shutdown, preview shutdown, repeated closes, concurrent disposal, original-close preservation, and replacement-global ownership.

Fixes #17215

[pkg-svelte-dev]

Install the latest version of @sveltejs/kit from d5d1cdb:

pnpm add https://pkg.svelte.dev/@sveltejs/kit/c/d5d1cdb530ca0c5f28184eaf096c1f721fd54d89

Open in pkg.svelte.dev: https://pkg.svelte.dev/repos/kit/pr/17216

Note

This PR is from a fork. A maintainer must approve approve each commit before it can be built and installed.

[changeset-bot]

🦋 Changeset detected

Latest commit: d5d1cdb

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@sveltejs/adapter-cloudflare	Patch

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[Nic-Polumeyv]

The server.close wrapper is lost on restart: restartServer closes via _closeServer('restart') and Object.assign(server, newServer) replaces close, so after a vite.config edit the final close never disposes the proxy (reproduced locally).

Use Vite 8.3's closeServer / closePreviewServer instead (vitejs/vite#23110). Below 8.3 they never fire, which is acceptable. Skipping reason === 'restart' is required because the new server's configureServer already ran against the existing global and inherits the proxy.

const dispose = async () => {
	const proxy = globalThis.__sveltekit_cloudflare_platform;
	if (!proxy) return;
	Reflect.deleteProperty(globalThis, '__sveltekit_cloudflare_platform');
	await proxy.dispose();
};
// ...
closeServer: ({ reason }) => (reason === 'close' ? dispose() : undefined),
closePreviewServer: dispose,

This drops the memoised disposal and the ownership guard, so one real-server close test is enough.

[Nic-Polumeyv]

@svelte-triage-bot Hello? are we working on my review?

[Nic-Polumeyv]

Closed in favour of #17238