Which @angular/* package(s) are the source of the bug?

platform-browser

Is this a regression?

No

Description

Bug is on this line.

What's happening is an app is running in dev mode and being imported in a website that's been compiled for production leaving devMode out of the compilation. It's an MFE specifying the angular packages are shared dependencies.

I've created a similar bug in the past for ngrx. ngrx/platform#4699

You guys could implement the same fix. https://github.com/ngrx/platform/pull/4703/files

Replace ngDevMode ? 'EventManagerPlugins' : '' with typeof ngDevMode !== 'undefined' && ngDevMode ? 'EventManagerPlugins': ''

If there are similar examples in this repository those should be addressed too to prevent anyone from running across this again.

Please provide a link to a minimal reproduction of the bug

No response

Please provide the exception or error you saw

Uncaught ReferenceError: application 'my-mfe-application' died in status LOADING_SOURCE_CODE: ngDevMode is not defined

Please provide the environment you discovered this bug in (run ng version)

Angular CLI: 19.2.15
Node: 20.19.1
Package Manager: npm 10.8.2
OS: win32 x64

Angular: 19.2.14
... animations, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1902.15
@angular-devkit/build-angular   19.2.15
@angular-devkit/core            19.2.15
@angular-devkit/schematics      19.2.15
@angular/cli                    19.2.15
@schematics/angular             19.2.15
rxjs                            7.8.2
typescript                      5.8.3
zone.js                         0.15.1

Anything else?

No response