Configuration file for Pages projects does not support "alias" - Or can It? Using the new 2024-09-23 compat

[superjose]

Hi everyone 🤗

First, thank you, and excellent work with the new compatibility node release!!!

Things have VASTLY improved!

It just came right in time, as just last week, I was in the process of ditching Cloudflare altogether because many of my packages were breaking (and I even rearchitected the app to avoid this... But it wasn't possible in the end)

I'm having a last hiccup.

I'm trying to polyfill playwright-core from my configuration. I don't need the package because I won't use it from Cloudflare, but I can't remove the dependency directly as it's from a shared package in a mono repo structure.

Stack:

• TypeScript
• Remix V 2.12
• Vite
• Turborepo
• Wrangler 3.78.12

I tried the following:

name = "deploud"
compatibility_date = "2024-09-23"
compatibility_flags = ["nodejs_compat"]
pages_build_output_dir = "./build/client"

[alias]
"playwright-core" = "./cloudflare-polyfills/playwright.js"

But I get an error back saying: Configuration file for Pages projects does not support "alias"

 - Configuration file for Pages projects does not support "alias"
    at readConfig (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/[email protected]_@[email protected]/node_modules/wrangler/src/config/index.ts:146:10)
    at getPlatformProxy (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/[email protected]_@[email protected]/node_modules/wrangler/src/api/integrations/platform/index.ts:104:20)
    at configureServer (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/@[email protected]_@[email protected][email protected][email protected][email protected]_typ_coyeyavnd3odz3uxb655lymsqa/node_modules/@remix-run/dev/dist/vite/cloudflare-proxy-plugin.js:55:17)
    at _createServer (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/vite/dist/node/chunks/dep-CUvs3bbV.js:63019:20)
    at async configResolved (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/@[email protected]_@[email protected][email protected][email protected][email protected]_typ_coyeyavnd3odz3uxb655lymsqa/node_modules/@remix-run/dev/dist/vite/plugin.js:748:27)
    at async Promise.all (index 2)
    at Module.resolveConfig (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/[email protected]_@[email protected][email protected]/node_modules/vite/dist/node/chunks/dep-CUvs3bbV.js:66343:3)
    at async Object.resolveViteConfig (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/@[email protected]_@[email protected][email protected][email protected][email protected]_typ_coyeyavnd3odz3uxb655lymsqa/node_modules/@remix-run/dev/dist/vite/plugin.js:72:20)
    at async build (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/@[email protected]_@[email protected][email protected][email protected][email protected]_typ_coyeyavnd3odz3uxb655lymsqa/node_modules/@remix-run/dev/dist/vite/build.js:192:20)
    at async Object.viteBuild (/Users/joseasilis/Documents/programming/alertdown/node_modules/.pnpm/@[email protected]_@[email protected][email protected][email protected][email protected]_typ_coyeyavnd3odz3uxb655lymsqa/node_modules/@remix-run/dev/dist/cli/commands.js:183:5)

Any ideas?

[oxcabe]

I'm having a related issue, trying to polyfill node-fetch by using the approach presented in
Cloudflare Blog post 1 causes Wrangler to complain with:

- Configuration file for Pages projects does not support "alias"

Replacing pages_build_output_dir in favor of main causes the deployment to ignore the wrangler.toml file:

A wrangler.toml file was found but it does not appear to be valid. Did you mean to use wrangler.toml to configure Pages? If so, then make sure the file is valid and contains the `pages_build_output_dir` property. Skipping file and continuing.

This is the current state of my wrangler.toml:

#:schema node_modules/wrangler/config-schema.json
name = "redacted-dev"
pages_build_output_dir = "./build/client"
compatibility_date = "2024-11-18"

compatibility_flags = ["nodejs_compat_v2"]

[placement]
mode = "off"

[env.production.placement]
mode = "smart"

[alias]
"node-fetch" = "./utils/polyfills/fetch"

The blog post 1 also states the following:

Today, we are excited to announce a preview of improved Node.js compatibility for Workers and Pages.

To me, this implies that alias should work for both Pages and Workers.