Merge branch 'main' into environment-api

Author: teemingc

.changeset/happy-beers-remain.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/adapter-cloudflare': patch
+---
+
+fix: correctly warn users when assets key is missing

.changeset/tricky-pants-kick.md

@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+fix: log when no Svelte config file has been found to avoid confusion

.github/workflows/ci.yml

@@ -74,6 +74,8 @@ jobs:
       - run: pnpm playwright install ${{ matrix.e2e-browser }}
       - run: pnpm run sync-all
       - run: pnpm test:kit
+        env:
+          NODE_OPTIONS: ${{matrix.node-version == 22 && '--experimental-strip-types' || ''}} # allows loading svelte.config.ts
       - name: Print flaky test report
         run: node scripts/print-flaky-test-report.js
       - name: Archive test results
@@ -181,14 +183,19 @@ jobs:
           path: test-results-server-side-route-resolution-${{ matrix.mode }}.tar.gz
   test-others:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18, 20, 22, 24]
     steps:
       - uses: actions/checkout@v4
       - uses: pnpm/[email protected]
       - uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: ${{matrix.node-version}}
           cache: pnpm
       - run: pnpm install --frozen-lockfile
       - run: pnpm playwright install chromium
       - run: cd packages/kit && pnpm prepublishOnly
       - run: pnpm run test:others
+        env:
+          NODE_OPTIONS: ${{matrix.node-version == 22 && '--experimental-strip-types' || ''}} # allows loading svelte.config.ts

documentation/docs/20-core-concepts/20-load.md

@@ -206,7 +206,7 @@ Universal `load` functions are called with a `LoadEvent`, which has a `data` pro
 
 A universal `load` function can return an object containing any values, including things like custom classes and component constructors.
 
-A server `load` function must return data that can be serialized with [devalue](https://github.com/rich-harris/devalue) — anything that can be represented as JSON plus things like `BigInt`, `Date`, `Map`, `Set` and `RegExp`, or repeated/cyclical references — so that it can be transported over the network. Your data can include [promises](#Streaming-with-promises), in which case it will be streamed to browsers.
+A server `load` function must return data that can be serialized with [devalue](https://github.com/rich-harris/devalue) — anything that can be represented as JSON plus things like `BigInt`, `Date`, `Map`, `Set` and `RegExp`, or repeated/cyclical references — so that it can be transported over the network. Your data can include [promises](#Streaming-with-promises), in which case it will be streamed to browsers. If you need to serialize/deserialize custom types, use [transport hooks](https://svelte.dev/docs/kit/hooks#Universal-hooks-transport).
 
 ### When to use which
 

eslint.config.js

@@ -14,7 +14,9 @@ export default [
 			'**/test-results',
 			'**/build',
 			'**/.custom-out-dir',
-			'packages/adapter-*/files'
+			'packages/adapter-*/files',
+			'packages/kit/src/core/config/fixtures/multiple', // dir contains svelte config with multiple extensions tripping eslint
+			'packages/package/test/fixtures/typescript-svelte-config/expected'
 		]
 	},
 	{

package.json

@@ -31,7 +31,7 @@
 		"prettier-plugin-svelte": "^3.4.0",
 		"typescript-eslint": "^8.35.0"
 	},
-	"packageManager": "pnpm@10.12.4",
+	"packageManager": "pnpm@10.13.1",
 	"engines": {
 		"pnpm": ">=9.0.0"
 	},

packages/adapter-auto/package.json

@@ -42,7 +42,7 @@
 	"devDependencies": {
 		"@sveltejs/kit": "workspace:^",
 		"@sveltejs/vite-plugin-svelte": "catalog:",
-		"@types/node": "^18.19.48",
+		"@types/node": "^18.19.119",
 		"typescript": "^5.3.3",
 		"vitest": "catalog:"
 	},

packages/adapter-cloudflare/index.js

@@ -1,8 +1,8 @@
 import { copyFileSync, existsSync, writeFileSync } from 'node:fs';
 import path from 'node:path';
-import process from 'node:process';
 import { fileURLToPath } from 'node:url';
 import { unstable_readConfig } from 'wrangler';
+import { is_building_for_cloudflare_pages } from './utils.js';
 
 /** @type {import('./index.js').default} */
 export default function (options = {}) {
@@ -302,20 +302,6 @@ function validate_config(config_file = undefined) {
 	return wrangler_config;
 }
 
-/**
- * @param {import('wrangler').Unstable_Config} wrangler_config
- * @returns {boolean}
- */
-function is_building_for_cloudflare_pages(wrangler_config) {
-	return (
-		!!process.env.CF_PAGES ||
-		!wrangler_config.configPath ||
-		!!wrangler_config.pages_build_output_dir ||
-		!wrangler_config.main ||
-		!wrangler_config.assets
-	);
-}
-
 /** @param {string} str */
 function posixify(str) {
 	return str.replace(/\\/g, '/');

packages/adapter-cloudflare/package.json

@@ -41,7 +41,9 @@
 		"format": "pnpm lint --write",
 		"check": "tsc --skipLibCheck",
 		"prepublishOnly": "pnpm build",
-		"test": "pnpm build && pnpm -r --workspace-concurrency 1 --filter=\"./test/**\" test"
+		"test:unit": "vitest run",
+		"test:e2e": "pnpm build && pnpm -r --workspace-concurrency 1 --filter=\"./test/**\" test",
+		"test": "pnpm test:unit && pnpm test:e2e"
 	},
 	"dependencies": {
 		"@cloudflare/workers-types": "^4.20250507.0",
@@ -50,9 +52,10 @@
 	"devDependencies": {
 		"@playwright/test": "catalog:",
 		"@sveltejs/kit": "workspace:^",
-		"@types/node": "^18.19.48",
+		"@types/node": "^18.19.119",
 		"esbuild": "^0.25.4",
-		"typescript": "^5.3.3"
+		"typescript": "^5.3.3",
+		"vitest": "catalog:"
 	},
 	"peerDependencies": {
 		"@sveltejs/kit": "^2.0.0",

packages/adapter-cloudflare/test/apps/pages/package.json

@@ -13,7 +13,7 @@
 		"@sveltejs/kit": "workspace:^",
 		"@sveltejs/vite-plugin-svelte": "catalog:",
 		"server-side-dep": "file:server-side-dep",
-		"svelte": "^5.23.1",
+		"svelte": "^5.35.5",
 		"vite": "catalog:",
 		"wrangler": "^4.14.3"
 	},