Remove Authorization Header for some http calls Angular

You can use the request.url property to filter what you need. One of the easiest ways:

intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    // add authorization header with jwt token if available
    const currentUser = this.authenticationService.currentUserValue;
    if (request.url.indexOf('some APIs path') === 0 && currentUser && currentUser.token) {
      request = request.clone({
        setHeaders: {
          Authorization: `Bearer ${currentUser.token}`
        }
      });
    }

    return next.handle(request);
  }

In those service files use this way

import {HttpBackend, HttpClient} from "@angular/common/http";

constructor(private http: HttpClient, handler: HttpBackend ) {
    this.http = new HttpClient(handler);
}