Spring boot app return Access to XMLHttpRequest at “myURL” has been blocked by CORS policy

Question

i\'m stuck with this issue: i use a spring boot app in backend and angular app for the front, the issue is when i call a specific rest url in the backend that uses a jar depend

Answer 1

Firstly, you need add @CrossOrigin annotation in your controller. Than here is correct configuration from documentation:

@Bean
public WebMvcConfigurer corsConfigurer() {
    return new WebMvcConfigurer() {
        @Override
        public void addCorsMappings(CorsRegistry registry) {

            registry.addMapping("/**")
                    .allowedOrigins("*")
                    .allowedMethods("*")
                    .allowedHeaders("*");

        }
    };
}

You can configure it your own way.

Secondly, if you are using SpringSecurity you need add .cors() to your configuration.

Example:

@Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .cors().and()
                .csrf().disable()
                .authorizeRequests()
                .anyRequest().permitAll()
                .and().httpBasic();
    }