[Basepro] Cross-domain separation of front and back ends

SpringBoot-WebMvcConfigurer detailed explanation

@Configuration
public class CorsConfig implements WebMvcConfigurer{
    
    
	@Override
	public void addCorsMappings(CorsRegistry registry){
    
    
		registry.addMapping("/**")
		.allowedMethods("*")
		.allowedOrigins("*")
		.allowedHeaders("*");
	}
}