Vercel Deployment Serves .js File Instead of Running Node.js Server

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Description:
Deployed a Node.js/TypeScript/Express server to Vercel. While it works with vercel dev, the production URL serves the raw .js file instead of running the server.

Expected Behavior:
The server should execute and handle HTTP requests in production.

Steps to Reproduce:

Deploy the server to Vercel.
Access the production URL.
Environment:

Node.js
TypeScript
Express
Vercel Production

2

If you’re having trouble deploying an Express app, this guide can help.

You can also ask v0 for suggestions tailored to your own project setup.

3

Vercel is a serverless platform. You won’t be able to run a Server in Vercel unfortunately. We recommend reviewing our guide to learn more how you can run Express on Vercel

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