fix: serve_prerendered breaks on node http server (#8890)

* fix: make serve_prerendered middleware work with node http server

* changeset

* lint?

* confusing_branches_confuse.md

* simplify

Author: gtm-nayan

.changeset/late-dancers-vanish.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-node': patch
+---
+
+fix: make serve_prerendered middleware work with node http server

packages/adapter-node/package.json

@@ -32,6 +32,7 @@
 		"prepublishOnly": "pnpm build"
 	},
 	"devDependencies": {
+		"@polka/url": "^1.0.0-next.21",
 		"@sveltejs/kit": "workspace:^",
 		"@types/node": "^16.18.6",
 		"c8": "^7.12.0",

packages/adapter-node/rollup.config.js

@@ -1,7 +1,7 @@
 import { nodeResolve } from '@rollup/plugin-node-resolve';
 import commonjs from '@rollup/plugin-commonjs';
 import json from '@rollup/plugin-json';
-import { builtinModules } from 'module';
+import { builtinModules } from 'node:module';
 
 export default [
 	{

packages/adapter-node/src/handler.js

@@ -3,6 +3,7 @@ import fs from 'node:fs';
 import path from 'node:path';
 import sirv from 'sirv';
 import { fileURLToPath } from 'node:url';
+import { parse as polka_url_parser } from '@polka/url';
 import { getRequest, setResponse } from '@sveltejs/kit/node';
 import { Server } from 'SERVER';
 import { manifest, prerendered } from 'MANIFEST';
@@ -50,7 +51,7 @@ function serve_prerendered() {
 	const handler = serve(path.join(dir, 'prerendered'));
 
 	return (req, res, next) => {
-		let pathname = req.path;
+		let { pathname, search, query } = polka_url_parser(req);
 
 		try {
 			pathname = decodeURIComponent(pathname);
@@ -65,8 +66,7 @@ function serve_prerendered() {
 		// remove or add trailing slash as appropriate
 		let location = pathname.at(-1) === '/' ? pathname.slice(0, -1) : pathname + '/';
 		if (prerendered.has(location)) {
-			const search = req.url.split('?')[1];
-			if (search) location += `?${search}`;
+			if (query) location += search;
 			res.writeHead(308, { location }).end();
 		} else {
 			next();