Why didn't the projection work?

Question

Angular

As a result, in the chrome inspector I see:

<app-map-wrapper _nghost-bod-c262="" ng-version="10.2.4"></app-map-wrapper>

The component is loaded by default:

import { Component } from '@angular/core';

@Component({
    selector: 'app-map-wrapper',
    styleUrls: ['./map-wrapper.component.scss'],
    templateUrl: './map-wrapper.component.html',
})
export class MapWrapperComponent {
}

Answer 1

in index.html, everything inside the root component will be replaced when Angular is loaded.
Using this, you can make simple loading screens.