CORS policy issue while hitting the rest service(Spring Boot) from Angular5 Application - spring-boot

Question

I am getting below error when I try to hit post service from Angular 5
Failed to load resource: the server responded with a status of 403
(Forbidden) Access to XMLHttpRequest at
'https://xxxx/xxxx/services/exportVarianceHome' from origin
'http://localhost:4200' has been blocked by CORS policy:
Response to preflight request doesn't pass access control check: No
'Access-Control-Allow-Origin' header is present on the requested
resource.
Below is my interceptor configuration in Angular 5
import { Injectable, NgModule} from '#angular/core';
import { Observable } from 'rxjs/Observable';
import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpResponse} from '#angular/common/http';
import { HTTP_INTERCEPTORS } from '#angular/common/http';
import 'rxjs/add/operator/do';
#Injectable()
export class HttpsRequestInterceptor implements HttpInterceptor {
intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
const dupReq = req.clone({ headers: req.headers
.set('Access-Control-Allow-Origin','*')
.set('Content-Type', 'application/json')
.set('Authorization', 'Basic XXXXXXXXXXXXXXXXXXXXXX')
.set('Access-Control-Allow-Credentials','true') });
return next.handle(dupReq);
}
};
#NgModule({
providers: [
{ provide: HTTP_INTERCEPTORS, useClass: HttpsRequestInterceptor, multi: true }
]
})
And Angular Post Call
import { HttpClient} from '#angular/common/http';
constructor(private httpClient:HttpClient){
getLookupDetails();
}
getLookupDetails(){
this.httpClient.get(this.servicsUrl).subscribe(
(data:any) => {
console.log("JSON Response " + JSON.stringify(data));
}
)
}
And the Cross origin Setup at server side (SpringBoot)
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
#SpringBootApplication(scanBasePackages = {"com.controller.gtm"})
public class BrokerValidationApplication extends SpringBootServletInitializer implements WebMvcConfigurer {
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(BrokerValidationApplication.class);
}
public static void main(String[] args) {
SpringApplication.run(BrokerValidationApplication.class, args);
}
#Override
public void addCorsMappings(CorsRegistry registry) {
System.out.println(">=== Inside Cors Orgin Mapping addCorsMappings ===>");
registry.addMapping("/services/**")
.allowedOrigins("*")
.allowedMethods("POST", "GET", "PUT", "OPTIONS", "DELETE")
.allowedHeaders("*")
.allowCredentials(true)
.maxAge(4800);
}
}