Current Behavior

When I run nx serve my-project it won't generate a sourcemap for my main.js file. Meaning I can't use a debugger in Typescript.

Expected Behavior

I expect it to create a sourceMap next to my main.js file

GitHub Repo

No response

Steps to Reproduce

1. Create a a fresh nx workspace with a nest preset npx create-nx-workspace my-workspace --preset=nest
2. run it with nx serve appname
3. check dist/apps/appname, main.js does not have a sourcemap included.

Nx Report

>  NX   Report complete - copy this into the issue template

   Node   : 21.4.0
   OS     : darwin-x64
   npm    : 10.2.4
   
   nx (global)        : 17.2.8
   nx                 : 17.3.1
   @nx/js             : 17.3.1
   @nx/jest           : 17.3.1
   @nx/linter         : 17.3.1
   @nx/eslint         : 17.3.1
   @nx/workspace      : 17.3.1
   @nx/devkit         : 17.3.1
   @nx/eslint-plugin  : 17.3.1
   @nx/nest           : 17.3.1
   @nx/node           : 17.3.1
   @nrwl/tao          : 17.3.1
   @nx/web            : 17.3.1
   @nx/webpack        : 17.3.1
   typescript         : 5.3.3

Failure Logs

No response

Package Manager Version

No response

Operating System

• macOS
• Linux
• Windows
• Other (Please specify)

Additional Information

Originally I had a repo with NX version 16.2 / the debugging experience was working fine.
I used NX migrate to migrate my repo to the latest NX version: 17.3. The debugger stopped working. After a lot of trial and error, I noticed that a sourceMap was not generated for the main.js file any more - hence the debugger could not match my Typescript breakpoints with the main.js file.

I thought that maybe my repo was messed up and generated a brand new one with the nx generate workspace command. That one had the same issue OOTB.