Fix pages functions using unenv aliased packages

[0xD34DC0DE]

Fixes #7572

• Added a test fixture to test the edge case where pages functions using nodejs_compat (v2) together with the import of an npm package getting aliased by unenv would trigger the addition of __cf_cjs multiple times
• Replace the __cf_cjs esm to cjs converter function by an inline expression to avoid the use of esbuild banners that might get included in the bundle multiple time.

A separate fixture has been created to avoid making all tests in fixtures\pages-nodejs-v2-compat fail for an unrelated reason since the runtime fails to start when the issue is present.
The test fixture was inspired by the nodejs-hybrid-app and pages-nodejs-v2-compat fixtures.

---

• Tests
  • TODO (before merge)
  • Tests included
  • Tests not necessary because:
• E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
  • I don't know
  • Required
  • Not required because: should be adequately covered by fixtures
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s):
  • Documentation not necessary because: Bugfix

[changeset-bot]

🦋 Changeset detected

Latest commit: 7350ca0

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

This PR includes changesets to release 2 packages

Name	Type
wrangler	Patch
@cloudflare/vitest-pool-workers	Patch

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[github-actions]

A wrangler prerelease is available for testing. You can install this latest build in your project with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-wrangler-8021

You can reference the automatically updated head of this PR with:

npm install --save-dev https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/prs/8021/npm-package-wrangler-8021

Or you can use npx with this latest build directly:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-wrangler-8021 dev path/to/script.js

Additional artifacts:

cloudflare-workers-bindings-extension:

wget https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-workers-bindings-extension-8021 -O ./cloudflare-workers-bindings-extension.0.0.0-v9ca029b6f.vsix && code --install-extension ./cloudflare-workers-bindings-extension.0.0.0-v9ca029b6f.vsix

create-cloudflare:

npx https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-create-cloudflare-8021 --no-auto-update

@cloudflare/kv-asset-handler:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-kv-asset-handler-8021

miniflare:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-miniflare-8021

@cloudflare/pages-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-pages-shared-8021

@cloudflare/unenv-preset:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-unenv-preset-8021

@cloudflare/vite-plugin:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-vite-plugin-8021

@cloudflare/vitest-pool-workers:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-vitest-pool-workers-8021

@cloudflare/workers-editor-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-workers-editor-shared-8021

@cloudflare/workers-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-workers-shared-8021

@cloudflare/workflows-shared:

npm install https://prerelease-registry.devprod.cloudflare.dev/workers-sdk/runs/13324132685/npm-package-cloudflare-workflows-shared-8021

Note that these links will no longer work once the GitHub Actions artifact expires.

---

[email protected] includes the following runtime dependencies:

Package	Constraint	Resolved
miniflare	workspace:*	3.20250204.1
workerd	1.20250204.0	1.20250204.0
workerd --version	1.20250204.0	2025-02-04

Please ensure constraints are pinned, and miniflare/workerd minor versions match.

[petebacondarwin]

The good news is that our test coverage seems to check these changes!
The bad news is that they appear to be unhappy with this change.

[0xD34DC0DE]

The good news is that our test coverage seems to check these changes!
The bad news is that they appear to be unhappy with this change.

Thanks for the review, I'll try to see why the tests aren't successful when they're executed on the CI, my first guess would be the use of transitive includes (cross-fetch and cross-env)?

[vicb]

Thanks a lot for your work on this - and coping with my reviews ;)

One last comment and this should be good to go

[vicb]

@0xD34DC0DE Sorry I was bad at following up here. Thanks for your work here and let's get this in today

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[vicb]

Merci Émerick and sorry again for letting this unattended for so long :(