im developping a back-end with the Spring framework. My frontend is written using the Angular framework. My GET requests are being blocked by the CORS policy.
When i make a request to a GET resource with the following angular function:
authenticate(credentials, callback) {
        const headers = new HttpHeaders(credentials ? {
            authorization : 'Basic ' + btoa(credentials.username + ':' + credentials.password)
        } : {});
        this.http.get("http://localhost:8080/user", {headers: headers}).subscribe(response => {
          console.log(response);
          console.log(this.authenticated);
            if (response['name']) {
                this.authenticated = true;
            } else {
                this.authenticated = false;
            }
            return callback && callback();
        });
    }
I get a failed request in my Network tab. Depending on my security config, i also sometimes get a 401 but in both cases i'll get the "blocked by cors" message in the console.
This is the Controller the request is being sent to:
@CrossOrigin(origins = "*", allowedHeaders = "*")
@RestController
public class AuthorizationController {
    @CrossOrigin(origins = "*", allowedHeaders = "*")
    @RequestMapping("/user")
        public Principal user(Principal user) {
        System.out.println(user);
            return user;
        }
    }
Here is my Spring security configuration:
 @Override
    protected void configure(final HttpSecurity http) throws Exception {
              http.httpBasic()
                      .and().authorizeRequests().antMatchers("/**").permitAll()
                      .anyRequest().authenticated();
    }
Note: this would not be my preferred configuration. I'm using this because it's the only way i get something to work. With this configuration, my POST requests are working. However, the GET request i describe earlier on does not work with this configuration.
Any tips or help would be appreciated, let me know if you need any further information about my code.
 
    