ngtools with nested lazy modules routing #3593

Please provide us with the following information:

OS?

Windows 10

Versions.

angular-cli: 1.0.0-beta.22-1
node: 6.7.0
os: win32 x64

Repro steps.

Suppose there are two nested lazy modules routes like this:

Module A: app-routing.module

`export const routes: Routes = [
{ path: '', redirectTo: 'dashboard', pathMatch: 'full' },
{ path: 'login', loadChildren: './login/login.module#LoginModule' },
{ path: 'dashboard', loadChildren: './dashboard/dashboard.module#DashboardModule'}
];

@NgModule({
imports: [RouterModule.forRoot(routes)],
exports: [RouterModule]
})
export class AppRoutingModule {}`

Module B (lazy module with another lazy module) dashboard-routing.module:

`const routes: Routes = [
{ path: '', component: DashboardComponent, pathMatch: 'full' },
{ path: 'explotaciones', component: DashboardComponent,
children: [
{ path: '', loadChildren: './explotaciones/explotaciones.module#ExplotacionesModule'}
]
}
];

@NgModule({
imports: [RouterModule.forChild(routes)],
exports: [RouterModule]
})
export class DashboardRoutingModule {}`

The log given by the failure.

Error: Could not resolve route "./explotaciones/explotaciones.module#ExplotacionesModule" from file "D:\Code\DL-GEST\src\client\app\dashboard\dashboard.module".
at D:\Code\DL-GEST\node_modules@ngtools\webpack\src\plugin.js:280:23
at Array.map (native)
at AotPlugin._processNgModule (D:\Code\DL-GEST\node_modules@ngtools\webpack\src\plugin.js:275:14)
at _loop_1 (D:\Code\DL-GEST\node_modules@ngtools\webpack\src\plugin.js:309:35)
at AotPlugin._processNgModule (D:\Code\DL-GEST\node_modules@ngtools\webpack\src\plugin.js:328:13)
at D:\Code\DL-GEST\node_modules@ngtools\webpack\src\plugin.js:242:39
at process._tickCallback (internal/process/next_tick.js:103:7)
70% building modules 716/716 modules 0 active

Mention any other details that might be useful.

I have been looking for the error and I find a problem in plugin.js. At line 274, this.extractLoading function use a variable called 'relativeModulePath'. With module A, this variable use '/' on paths (D:/Code/DL-GEST/src/client/app/app.module) and there is no problem with it, but with module B, this variable use '\' on path and then, emit error I wrote lines before.

I have changed function var relativeModulePath = this._resolveModulePath(module, containingFile) to
var relativeModulePath = this._resolveModulePath(module, containingFile).replace(/\\/g,'/') and it solves my problems.

Is there a better approach to solve it??

Thanks and excuse my english :).

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