Server.respond() launches setInterval into event loop while running on nodejs runtime

[falmar]

Describe the bug

(I may be doing something wrong yet dont know) im new to svelte 🤣 trying to run it on lambda aws...

Just as the title states,

i have added config.kit.version.pollInterval setting in svelte.config.js,

In a attempt to create custom adapter for AWS Lambda, i'm directly the calling a javascript file with nodejs that would very roughly simulate a lambda request call, then i noticed that the process would hang for a minute before exiting, removing the .pollInterval setting stopped this from happening.

I aws expecting this to not run on nodejs runtime but client only.

svelte.config.js import the adapter (based on adapter-node build process) includes the shims installPolyfills,

import adapter from './adapter-lambda/index.js';

/** @type {import('@sveltejs/kit').Config} */
const config = {
	kit: {
		version: {
			pollInterval: 60 * 1000
		},

		adapter: adapter({
			out: 'build',
			precompress: true,
			polyfill: true
		})
	}
};

export default config;

and the adapter code is basically just this, setting Server option prerendering.fallback = true seems to solve the problem but then i dont receive any SSR content

const req = new Request(url.toString(), {
	method: method,
	headers: headers,
	body: null
});

const server = new Server(manifest);
await server.init({ env });

return await server.respond(req, {
	platform: { req },
	// it hangs without this
	prerendering: {
	    fallback: true
	}
});

this is the js file that calls and attempts to use the adapter, it calls the /about url which is set prerender = false so it gives some output

import svelte from './build/svelte.js';

async function run() {
	const origin = process.env.ORIGIN || 'http://localhost:3000';

	const response = await svelte({
		env: process.env,
		url: new URL(origin + '/about'),
		method: 'GET',
		headers: new Headers({
			'accept-encoding': 'gzip, deflate, br',
			'accept-language': 'en-US,en;q=0.9',
			host: 'localhost:3000'
		}),
		body: null
	});

	console.log('Body:', await response.text());
	console.log('Headers:', response.headers);
	console.log('Status:', response.status);
}

run();

Reproduction

Repo: [email protected]:falmar/svelte-kit-version-poll-issue.git

To reproduce the issue,

• simply install the repo and dependencies and build the package

$ npm install
$ npm build

• call the lambda.js at the root project directory, which should hang for a minute after giving the output

$ node lambda.js

• then toggle on/off the config.kit.version.pollInterval setting.

Is something that I wouldn't notice at all if wasn't trying to run it on a single execution unlike a node server which is continuously running...

Logs

No response

System Info

System:
    OS: Linux 6.2 Fedora Linux 37 (Workstation Edition)
    CPU: (16) x64 AMD Ryzen 7 5800X3D 8-Core Processor
    Memory: 20.60 GB / 31.24 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 18.7.0 - /usr/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 8.15.0 - /usr/bin/npm
  Browsers:
    Chrome: 113.0.5672.92
    Firefox: 112.0.2
  npmPackages:
    @sveltejs/adapter-auto: ^2.1.0 => 2.1.0 
    @sveltejs/adapter-node: ^1.2.4 => 1.2.4 
    @sveltejs/kit: ^1.18.0 => 1.18.0 
    svelte: ^3.59.1 => 3.59.1 
    vite: ^4.3.8 => 4.3.8

Severity

annoyance

Additional Information

No response