Increase Bundle Size for Module Federation 19.7.2

[sorozco653]

Current Behavior

I've noticed that after upgrading my project from v19.4.4 to the latest version of Nx v19.7.2, the bundle size has increased from 660 kB to 1.29 MB, almost doubling in size. I haven't updated any module-federation configs, so I'm curious if the v2 of the module federation enhancement is causing a significant increase. Is this increase expected? Are there any best practices I can use to reduce our bundle size?

Before:

After:

Here's an another example with simple MFE repo

Expected Behavior

Ideally, the bundle size should stay the relatively the same

GitHub Repo

N/A

Steps to Reproduce

1. Create an MFE host and remote app w/nx 19.7.2
2. create a library that uses loadRemoteModule
3. Build the libraries and compare

Nx Report

Node           : 20.12.2
OS             : darwin-arm64
Native Target  : aarch64-macos
yarn           : 4.4.1

nx (global)        : 19.5.6
nx                 : 19.7.2
@nx/js             : 19.7.2
@nx/jest           : 19.7.2
@nx/linter         : 19.7.2
@nx/eslint         : 19.7.2
@nx/workspace      : 19.7.2
@nx/angular        : 19.7.2
@nx/devkit         : 19.7.2
@nx/eslint-plugin  : 19.7.2
@nx/playwright     : 19.7.2
@nrwl/tao          : 19.7.2
@nx/vite           : 19.7.2
@nx/web            : 19.7.2
@nx/webpack        : 19.7.2
nx-cloud           : 19.1.0
typescript         : 5.5.4
---------------------------------------
Community plugins:
@ngrx/operators : 18.0.2
@ngrx/signals   : 18.0.2
ng-mocks        : 14.13.1

Failure Logs

N/A

Package Manager Version

4.4.1

Operating System

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

Additional Information

No response

[Coly010]

Hey @sorozco653!

This is expected, for now.

Module Federation 2.0 bundles the federtaion runtime into the remoteEntry files.
There is work being done currently by Zack Jackson to offer avenues to remove the federation runtime from the remoteEntry files: module-federation/core#2932

[sorozco653]

It looks like module-federation/core#2932 has been merged and release with v0.6.7

[Coly010]

It has, but there's a potential bug introduced with that release also.

I'll be investigating it further

[sorozco653]

Any update with this?