Spring CORS No 'Access-Control-Allow-Origin

Question

I am getting the following problem after porting web.xml to java config

No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:63342' is therefore not allowed access.

Based on a few Spring references, the following attempt has been tried:

@Configuration
@ComponentScan(basePackageClasses = AppConfig.class, useDefaultFilters = false, includeFilters = {
        @Filter(org.springframework.stereotype.Controller.class) })
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/*").allowedOrigins("*").allowedMethods("GET", "POST", "OPTIONS", "PUT")
                .allowedHeaders("Content-Type", "X-Requested-With", "accept", "Origin", "Access-Control-Request-Method",
                        "Access-Control-Request-Headers")
                .exposedHeaders("Access-Control-Allow-Origin", "Access-Control-Allow-Credentials")
                .allowCredentials(true).maxAge(3600);
    }

}

The values chosen were taken from a working web.xml filter:

<filter>    
<filter-name>CorsFilter</filter-name>
<filter-class>org.apache.catalina.filters.CorsFilter</filter-class>
<init-param>
    <param-name>cors.allowed.origins</param-name>
    <param-value>*</param-value>
</init-param>
<init-param>
    <param-name>cors.allowed.methods</param-name>
    <param-value>GET,POST,HEAD,OPTIONS,PUT</param-value>
</init-param>
<init-param>
    <param-name>cors.allowed.headers</param-name>
    <param-value>Content-Type,X-Requested-With,accept,Origin,Access-Control-Request-Method,Access-Control-Request-Headers</param-value>
</init-param>
<init-param>
    <param-name>cors.exposed.headers</param-name>
    <param-value>Access-Control-Allow-Origin,Access-Control-Allow-Credentials</param-value>
</init-param>
<init-param>
    <param-name>cors.support.credentials</param-name>
    <param-value>true</param-value>
</init-param>
<init-param>
    <param-name>cors.preflight.maxage</param-name>
    <param-value>10</param-value>
</init-param> </filter> <filter-mapping>

<filter-name>CorsFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>

Any ideas why the Spring java config approach is not working like the web.xml file did?

Answer 1

We had the same issue and we resolved it using Spring's XML configuration as below:

Add this in your context xml file

<mvc:cors>
    <mvc:mapping path="/**"
        allowed-origins="*"
        allowed-headers="Content-Type, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Authorization, X-Requested-With, requestId, Correlation-Id"
        allowed-methods="GET, PUT, POST, DELETE"/>
</mvc:cors>

Answer 2

If you are using Spring Security ver >= 4.2 you can use Spring Security's native support instead of including Apache's:

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }
}

The example above was copied from a Spring blog post in which you also can find information about how to configure CORS on a controller, specific controller methods, etc. Moreover, there is also XML configuration examples as well as Spring Boot integration.

Answer 3

Change the CorsMapping from registry.addMapping("/*") to registry.addMapping("/**") in addCorsMappings method.

Check out this Spring CORS Documentation .

From the documentation -

Enabling CORS for the whole application is as simple as:

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**");
    }
}

You can easily change any properties, as well as only apply this CORS configuration to a specific path pattern:

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {
    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/api/**")
            .allowedOrigins("http://domain2.com")
            .allowedMethods("PUT", "DELETE")
            .allowedHeaders("header1", "header2", "header3")
            .exposedHeaders("header1", "header2")
            .allowCredentials(false).maxAge(3600);
    }
}

Controller method CORS configuration

@RestController
@RequestMapping("/account")
public class AccountController {
  @CrossOrigin
  @RequestMapping("/{id}")
  public Account retrieve(@PathVariable Long id) {
    // ...
  }
}

To enable CORS for the whole controller -

@CrossOrigin(origins = "http://domain2.com", maxAge = 3600)
@RestController
@RequestMapping("/account")
public class AccountController {

    @RequestMapping("/{id}")
    public Account retrieve(@PathVariable Long id) {
        // ...
    }

    @RequestMapping(method = RequestMethod.DELETE, path = "/{id}")
    public void remove(@PathVariable Long id) {
        // ...
    }
}

You can even use both controller-level and method-level CORS configurations; Spring will then combine attributes from both annotations to create merged CORS configuration.

@CrossOrigin(maxAge = 3600)
@RestController
@RequestMapping("/account")
public class AccountController {

    @CrossOrigin("http://domain2.com")
    @RequestMapping("/{id}")
    public Account retrieve(@PathVariable Long id) {
        // ...
    }

    @RequestMapping(method = RequestMethod.DELETE, path = "/{id}")
    public void remove(@PathVariable Long id) {
        // ...
    }
}

Answer 4

Following on Omar's answer, I created a new class file in my REST API project called WebConfig.java with this configuration:

@Configuration
@EnableWebMvc
public class WebConfig extends WebMvcConfigurerAdapter {

  @Override
  public void addCorsMappings(CorsRegistry registry) {
    registry.addMapping("/**").allowedOrigins("*");
  }
} 

This allows any origin to access the API and applies it to all controllers in the Spring project.

Answer 5

I also had messages like No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:63342' is therefore not allowed access.

I had configured cors properly, but what was missing in webflux in RouterFuncion was accept and contenttype headers APPLICATION_JSON like in this piece of code:

@Bean
RouterFunction<ServerResponse> routes() {
    return route(POST("/create")
                              .and(accept(APPLICATION_JSON))
                              .and(contentType(APPLICATION_JSON)), serverRequest -> create(serverRequest);
}

Answer 6

Helpful tip - if you're using Spring data rest you need a different approach.

@Component
public class SpringDataRestCustomization extends RepositoryRestConfigurerAdapter {

 @Override
 public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {
    config.getCorsRegistry().addMapping("/**")
            .allowedOrigins("http://localhost:9000");
  }
}