Next 9.5 monorepo production issue

Bug report

After updating to 9.5, next no longer works in my current monorepo setup on a deployment to vercel. Everything appears fine in development, however once I deploy to vercel the issue is exhibited by the home page redirecting to a path identical to the routing setup to the routes field in the now.json. In this case, the homepage is redirected to /my-app

Here is a link to the reproduction: https://github.com/stevez86/next-repro-2 And a link to a deployment: https://my-app-nsgjc5j8l.vercel.app/

Here is my now.json file, which I think is the culprit. The other app routes appear to be working as intended ie /abc/:slug1/:slug2 so I think this is only applicable to the homepage route at “/”.

{
  "version": 2,
  "builds": [{ "src": "my-app/next.config.js", "use": "@now/next" }],
  "routes": [{ "src": "/(.*)", "dest": "/my-app/$1", "continue": true }]
}

[samsisle]

Hello,

We don’t recommend attempting to make monorepos work via a vercel.json file — it’s simply a pain attempting to make the routing work.

We are testing Monorepo Support internally without the need for a vercel.json file. Stay tuned for an announcement in the coming days!

[samsisle]

@stevez86 It was released! → https://vercel.com/blog/monorepos 🎉