Error "remoteEntryExports is undefined" when loading Remote Application via loadRemote in ESM Project

[hoo00nn]

Hello. First, I would like to thank you for providing such a great library, which has been a tremendous help in building MFA.

What I am trying to achieve in my project is to integrate a remote application at runtime during the SSR process to generate HTML.

I am using NestJS as the SSR server. Everything seems to be working fine, but I encountered one issue. In a NestJS project configured with pure ESM, an error occurs when trying to load a remote application via loadRemote provided by @module-federation/runtime

Error: [ Federation Runtime ]: remoteEntryExports is undefined 
{
  "name": "myapp",
  "entry": "http://localhost:3004/server/remoteEntry.js",
  "shareScope": "default",
  "type": "global",
  "entryGlobalName": "myapp"
}

The host application is a pure ESM-configured NestJS application, and the remote application exposes React components using Webpack.

Are there any considerations for using the runtime API in an ESM-configured application when dealing with remotes? I have confirmed that it works correctly in a NestJS application using the CJS module format.

I have created a small repository for testing. The repository contains a NestJS application in ESM module format, a NestJS application in CJS format, and a remote application. You can experience the error when running the server in ESM.

From my investigation, it seems the error is triggered when executing this code

I would appreciate any help on this issue.