Nested lazyload modules

[wnabil]

I'm submitting a...

• Bug report
• Feature request
• Documentation issue or request

Current behavior

i got an error after upgrading my project to latest version, the nested lazyloaded modules seems to be broken
Cannot find 'SubModule' in './sub/sub.module'

Expected behavior

Nested lazyloaded modules should work and successfully load the next chunk

Minimal reproduction of the problem with instructions

create a lazyloaded module for example called "MainModule".
create another lazyloaded module inside your first module "SubModule" and call it by
{ path: 'sub', loadChildren: './sub/sub.module#SubModule' }
inside the main routes of the main module

Environment

- generator version: 5.0.0
- node version: 9.0.0  <!-- run `node --version` -->
- npm version: 5.5.1  <!-- run `npm --version` -->
- OS:  All

Others:
The compiler displays no error and the file is loaded without problems, only when you try to load the chunk on the browser you receive this error
It was working on version 4x.

[wnabil]

After diving into this problem i found that it is not a lazyload issue, the issue because in angular 6 they removed the global var, i do not know why it is showing a wrong error but in order to fix this just switch to window or declare global in polyfills.ts file as described here
angular/angular-cli#8160 (comment)