Trouble with loading styleUrl in angular2-meteor

My component is having trouble loading the style, even though the template loads correctly.

// client/imports/navbar/navbar.ts
import {Component} from "@angular/core";
@Component({
    selector: 'navbar',
    templateUrl: 'client/imports/navbar/navbar.html',
    styleUrls: ['client/imports/navbar/navbar.css']
})
export class Navbar {}

I've attempted the following solutions:

  • Setting the base href in the /client/index.html file
  • Injecting the base href into the base component /client/app.ts during the bootstrap process
  • Trying different ways of loading the style with:

styleUrls: [
    '/client/imports/navbar/navbar.css',
    'client/imports/navbar/navbar.css',
    'imports/navbar/navbar.css',
    './navbar.css',
    'navbar.css'
]

However, components in the root folder are able to load styles without any issue:

// client/app.ts
import {Component} from "@angular/core";
@Component({
    selector: 'app',
    templateUrl: 'client/app.html',
    styleUrls: ['app.css']
})
export class AppComponent{}

I am aware that:

  • Angular styles do not support relative paths
  • Paths should not start with a slash /
  • Paths should refer to the root due to the use of SystemJs (Meteor).

Despite this, I tried these methods anyway.

Update:

The only way I found to make it work was to declare the style inside the same template HTML file like this:

 <style>
   .my-class{
       ...
   }
 </style>
 <div class="my-class">
      ...
 </div>

Answer №1

Currently, the issue lies in the fact that all *.css files are merged together during the build process and loaded as a single file via http://localhost:3000/merged-stylesheets.css?hash=something. This results in a global style being applied rather than the component-specific style in Angular.

Let's take a look at an example:

@Component({
    templateUrl: 'client/home.component.html',
    styleUrls: [ 'client/home.component.css' ]
})
export class HomeComponent extends MeteorComponent {

Even though I can see a separate network request for client/home.component.css, it appears that the content is coming back as if it were a "route" request, returning the entire page instead of just the CSS content.

UPDATE: An issue has already been reported for this problem here: https://github.com/Urigo/angular2-meteor/issues/270

SOLUTION:

By using styleUrls, the CSS will be loaded on-demand but needs to be accessible later on. To achieve this, place the CSS file in the public folder of your meteor project (http://guide.meteor.com/v1.3/structure.html#meteor-structure). In the case of the example provided, the css file should be located at public/client/home.component.css.

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