Axios get access to response header fields

I'm building a frontend app with React and Redux and I'm using axios to perform my requests. I would like to get access to all the fields in the header of the response. In my browser I can inspect the header and I can see that all the fields that I need are present(such as token, uid, etc...), but when I call

const request = axios.post(`${ROOT_URL}/auth/sign_in`, props);
request.then((response)=>{
  console.log(response.headers);
});

I get just

Object {content-type: "application/json; charset=utf-8", cache-control: "max-age=0, private, must-revalidate"}

Here my browser network tab,as you can see all the other fields are present.

enter image description here

Bests.


In case of CORS requests, browsers can only access the following response headers by default:

  • Cache-Control
  • Content-Language
  • Content-Type
  • Expires
  • Last-Modified
  • Pragma

If you would like your client app to be able to access other headers, you need to set the Access-Control-Expose-Headers header on the server:

Access-Control-Expose-Headers: Access-Token, Uid

This really helped me, thanks Nick Uraltsev for your answer.

For those of you using nodejs with cors:

...
const cors = require('cors');

const corsOptions = {
  exposedHeaders: 'Authorization',
};

app.use(cors(corsOptions));
...

In the case you are sending the response in the way of res.header('Authorization', `Bearer ${token}`).send();


I was facing the same problem. I did this in my WebSecurity.java, it's about the setExposedHeaders method in the CORS configuration.

@Bean
CorsConfigurationSource corsConfigurationSource() {

    CorsConfiguration configuration = new CorsConfiguration();
    configuration.setAllowCredentials(true);
    configuration.setAllowedOrigins(Arrays.asList(FRONT_END_SERVER));
    configuration.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE"));
    configuration.setAllowedHeaders(Arrays.asList("X-Requested-With","Origin","Content-Type","Accept","Authorization"));
    
    // This allow us to expose the headers
    configuration.setExposedHeaders(Arrays.asList("Access-Control-Allow-Headers", "Authorization, x-xsrf-token, Access-Control-Allow-Headers, Origin, Accept, X-Requested-With, " +
            "Content-Type, Access-Control-Request-Method, Access-Control-Request-Headers"));
    
    UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
    source.registerCorsConfiguration("/**", configuration);
    return source;
}

I hope it works.


Faced same problem in asp.net core Hope this helps

public static class CorsConfig
{
    public static void AddCorsConfig(this IServiceCollection services)
    {
        services.AddCors(options =>
        {
            options.AddPolicy("CorsPolicy",
                builder => builder
                .WithExposedHeaders("X-Pagination")
                );
        });
    }
}

According to official docs:

This may help if you want the HTTP headers that the server responded with. All header names are lower cased and can be accessed using the bracket notation. Example: response.headers['content-type'] will give something like: headers: {},