Error: Unable to load chunk.js in Angular 7

After upgrading to Angular 7, I've been diving into the world of Lazy loaded modules. However, despite my efforts, I can't seem to find #chunk.js anywhere in the network tab when I click on components within the lazy loaded module.

Even when Contact us loads a component lazily, the elusive #chunk.js remains absent from the network tab.

https://i.sstatic.net/vilzZ.jpg

Here's how I have implemented lazy loading for my module:

import { NgModule } from '@angular/core';
import { Routes, RouterModule } from '@angular/router';

import { ContactUsComponent } from 'src/app/modules/contactus/contactus.component';
import { ErrorComponent } from 'src/app/modules/error/error.component';
import { ContactUsRoutingModule } from 'src/app/modules/contactus/contactus-routing.module';
import { LandingComponent } from 'src/app/modules/landing/landing.component';
import { AboutUsComponent } from 'src/app/modules/aboutus/aboutus.component';

const routes: Routes = [
  { path: '', redirectTo: 'landing', pathMatch: 'full' },
  { path: 'landing', component: LandingComponent },
  { path: 'aboutus', component: AboutUsComponent },
  { path: 'contactus', loadChildren: './modules/contactus/contactus.module#ContactusModule' },
  { path: '**', component: ErrorComponent }
];

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

Could it be that I missed something crucial or perhaps the mysterious file #chunk.js has been metamorphosed into another entity?

Answer №1

Adding some further details to Vishwajit Singh's explanation:

In the newer versions of Angular (7+), there is no longer a chunk.js file being loaded. Instead, Angular now loads a .js file with a name similar to

path-to-the-module-modulename-module.js
.

This particular example provides a clearer understanding compared to the information found on Angular's official website: https://web.dev/route-level-code-splitting-in-angular/

The author of this resource also demonstrates how the files are lazily loaded for better performance.

Answer №2

The file chunk.js is not visible in the network tab when accessing angular.io.

Here is an example of lazy loading for Angular 7.x: lazy load example.

To confirm if lazy loading is functioning correctly, go to the specific functionality and check if the lazy module appears in the network tab. If you are using preloadingStrategy, the lazy module will be preloaded. In that case, consider temporarily disabling preloadingStrategy for testing purposes.

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