reproduce the prebundling module issue

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/__tests__/issue-reproduction.spec.ts

@@ -0,0 +1,21 @@
+import { rmSync } from "fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { expect, test } from "vitest";
+import { getTextResponse, viteServer } from "../../__test-utils__";
+
+test("prebundling module issue reproduction", async () => {
+	const viteCacheDir = path.resolve(
+		fileURLToPath(import.meta.url),
+		"../../node_modules/.vite"
+	);
+
+	rmSync(viteCacheDir, { recursive: true });
+
+	await viteServer.close();
+	await viteServer.restart();
+
+	const result = await getTextResponse();
+	expect(result).not.toContain("context mismatch");
+	expect(result).toBe('Message from virtual module: "Hello from lib-b"');
+});

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/package.json

@@ -0,0 +1,21 @@
+{
+	"name": "@playground/prebundling-module-issue",
+	"private": true,
+	"type": "module",
+	"scripts": {
+		"build": "vite build --app",
+		"check:types": "tsc --build",
+		"dev": "vite dev",
+		"preview": "vite preview"
+	},
+	"devDependencies": {
+		"@cloudflare/vite-plugin": "workspace:*",
+		"@cloudflare/workers-tsconfig": "workspace:*",
+		"@cloudflare/workers-types": "^4.20250121.0",
+		"@packages/lib-a": "file:./packages/lib-a",
+		"@packages/lib-b": "file:./packages/lib-b",
+		"typescript": "catalog:vite-plugin",
+		"vite": "catalog:vite-plugin",
+		"wrangler": "catalog:vite-plugin"
+	}
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/packages/lib-a/index.d.ts

@@ -0,0 +1,3 @@
+export const context: {};
+
+export const setup: () => {};

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/packages/lib-a/index.js

@@ -0,0 +1,5 @@
+export const context = {};
+
+export function setup() {
+    globalThis.context = context;
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/packages/lib-a/package.json

@@ -0,0 +1,11 @@
+{
+	"name": "@playground/prebundling-module-issue-lib-a",
+	"version": "1.0.0",
+	"type": "module",
+	"exports": {
+		".": {
+			"default": "./index.js",
+			"types": "./index.d.ts"
+		}
+	}
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/packages/lib-b/index.d.ts

@@ -0,0 +1 @@
+export const msg: string;

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/packages/lib-b/index.js

@@ -0,0 +1,7 @@
+import * as libA from "@packages/lib-a";
+
+if (libA.context !== globalThis.context) {
+    throw new Error('context mismatch');
+}
+
+export const msg = 'Hello from lib-b';

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/packages/lib-b/package.json

@@ -0,0 +1,11 @@
+{
+	"name": "@playground/prebundling-module-issue-lib-b",
+	"version": "1.0.0",
+	"type": "module",
+	"exports": {
+		".": {
+			"default": "./index.js",
+			"types": "./index.d.ts"
+		}
+	}
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/src/index.ts

@@ -0,0 +1,10 @@
+import { setup } from "@packages/lib-a";
+
+setup();
+
+export default {
+	async fetch() {
+		const { msg } = await import("virtual:my-module");
+		return new Response(`Message from virtual module: "${msg}"`);
+	},
+} satisfies ExportedHandler;

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/tsconfig.json

@@ -0,0 +1,7 @@
+{
+	"files": [],
+	"references": [
+		{ "path": "./tsconfig.node.json" },
+		{ "path": "./tsconfig.worker.json" }
+	]
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/tsconfig.node.json

@@ -0,0 +1,4 @@
+{
+	"extends": ["@cloudflare/workers-tsconfig/base.json"],
+	"include": ["vite.config.ts", "__tests__"]
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/tsconfig.worker.json

@@ -0,0 +1,4 @@
+{
+	"extends": ["@cloudflare/workers-tsconfig/worker.json"],
+	"include": ["src", "virtual-module.d.ts"]
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/turbo.json

@@ -0,0 +1,9 @@
+{
+	"$schema": "http://turbo.build/schema.json",
+	"extends": ["//"],
+	"tasks": {
+		"build": {
+			"outputs": ["dist/**"]
+		}
+	}
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/virtual-module.d.ts

@@ -0,0 +1,3 @@
+declare module "virtual:my-module" {
+	export const msg: string;
+}

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/vite.config.ts

@@ -0,0 +1,21 @@
+import { cloudflare } from "@cloudflare/vite-plugin";
+import { defineConfig } from "vite";
+
+export default defineConfig({
+	plugins: [
+		cloudflare({ persistState: false }),
+		{
+			name: "my-plugin",
+			resolveId(id) {
+				if (id === "virtual:my-module") {
+					return "\0virtual:my-module";
+				}
+			},
+			load(id) {
+				if (id === "\0virtual:my-module") {
+					return `export { msg } from "@packages/lib-b";`;
+				}
+			},
+		},
+	],
+});

packages/vite-plugin-cloudflare/playground/prebundling-module-issue/wrangler.toml

@@ -0,0 +1,3 @@
+name = "worker"
+main = "./src/index.ts"
+compatibility_date = "2024-12-30"