The expression has been altered following verification. Component loading in progress

While I have come across similar questions, I haven't been able to find a solution for my specific issue.

@Component({
  selector: 'waiting',
  template: `
  <div class="waiting">
    <div *ngIf="isLoading" class="loader2"></div>
  <div>`
})

export class WaitingComponent {
  public isLoading: boolean;

  public constructor(private _authHttp: HttpService) {
    this._authHttp.request.subscribe((action: HttpAction) => {
      this.isLoading = action === HttpAction.Requested;//HttpAction.Requested returns 0 or 1
    });
  }
}

I've seen suggestions that the value of isLoading needs to be changed in AfterViewInit. However, I'm struggling to implement it successfully. Any help would be greatly appreciated.

Answer №1

To address this issue, you have the option to utilize

ChangeDetectorRef.detectChanges()
or zone.run(...)

export class LoadingComponent {
  public isLoading: boolean;

  public constructor(private _authHttp: HttpService, cdRef:ChangeDetectorRef) {
    this._authHttp.request.subscribe((action: HttpAction) => {
      this.isLoading = action === HttpAction.Requested;//HttpAction.Requested returns 0 or 1
      cdRef.detectChanges();
    });
  }
}

It seems that the root cause lies within the _authHttp implementation.

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