Builder not working right with Angular Material - Attempting to attach an unknown Portal type

[JuNe98]

With what library do you have an issue?

native-federation

Reproduction of the bug/regression with instructions

I am using this lib in an NX monorepo. I am implementing a header-nav in a publishable lib which contains a mat-menu. When I try to use this header-nav and click the mat-menu trigger, I get the following error:

I have already opened a ticket at the official Angular components repo and @devversion could confirm that with your builder two CDK version are existing: angular/components#30686 (comment)

I have already built a reproduction of the error in a public repo: https://github.com/JuNe98/nx-menu-bug

I also can confirm that the error only come up in Angular Material Version 19.2.4 or newer. 19.2.3 works fine.

Expected behavior

I would expect open the mat-menu causing no error.

Versions of Native/Module Federation, Angular, Node, Browser, and operating system

Native Federation: 19.0.16
Angular: 19.2.3
Angular Material: >=19.2.4

Other information

No response

I would be willing to submit a PR to fix this issue

• Yes
• No

[devversion]

I don't have a lot of context about Module Federation here, but out of curiosity I've looked more. I believe the issue could be?! that the shared chunks that are now part of e.g. @angular/cdk/fesm2022 aren't picked up as "shared" because (thesis) this plugin/federation only picks up the chunk specified in the exports[entrypoint].default export condition?

module-federation-plugin/libs/mf/src/utils/share-utils.ts

Lines 201 to 213 in 8dbc749

	for (const key of keys) {
	// const relPath = exports[key]['default'];
	const secondaryName = path.join(parent, key).replace(/\\/g, '/');
	if (exclude.includes(secondaryName)) {
	continue;
	}
	result[secondaryName] = {
	...shareObject,
	// import: path.join(libPath, relPath)
	};
	}