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Getting 200 response, but also CORS error?


Getting 200 response, but also CORS error?

By : Vineeth Reddy
Date : October 18 2020, 03:08 PM
Hope this helps
Im getting back the response I want, but I also get a CORS error which makes no sense to me
code :


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How to fix CORS error For Response header

How to fix CORS error For Response header


By : VES Education
Date : March 29 2020, 07:55 AM
may help you . I suggest you to go for the solution to set up a proxy configuration. Bypass the proxy using angular-cli. In this way, the one who talks with the API server is Angular CLI server.
Create a proxy config file in the project folder: proxy.config.json with the following content.
code :
{
 "/api/*": {
    "target": "http://http://localhost/pwap/html/api/web/v2/users/login",
    "secure": false,
    "pathRewrite": {"^/api" : ""}
  }
}
ng serve  —-proxy-config proxy.conf.json
this.httpClient.post('api/users'));
Spring boot 2.0.5 project CORS issue: add the CORS header to the http response

Spring boot 2.0.5 project CORS issue: add the CORS header to the http response


By : Alex K
Date : March 29 2020, 07:55 AM
wish help you to fix your issue I know lots of posts in SO are talking about this. But I have tried half a day but still failed. , Add this Additional Configuration in your project.
code :
@Configuration
public class AdditionalConfig {

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOrigin("*");
        config.addAllowedHeader("*");
        config.addAllowedMethod("*");
        source.registerCorsConfiguration("/**", config);
        return new CorsFilter(source);
    }
}

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;

public class CORSFilter implements Filter {

    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
            throws IOException, ServletException {

    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, OPTIONS, DELETE");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers",
                "X-Requested-With, Content-Type, Authorization, Origin, Accept, Access-Control-Request-Method, Access-Control-Request-Headers");
        chain.doFilter(req, res);
    }

    @Override
    public void init(FilterConfig filterConfig) {
    }

    @Override
    public void destroy() {
    }

}



CORS Preflight Response Error

CORS Preflight Response Error


By : Dai Bui
Date : March 29 2020, 07:55 AM
this one helps. I am trying to use Ajax to request information from an API. When attempting to run the code below, I receive this error: , You're sending this 3 HTTP headers in your request:
CORS error and 403 response with JWT token

CORS error and 403 response with JWT token


By : Rahul Singh
Date : March 29 2020, 07:55 AM
will help you I am trying to secure my Web Application via JWT token, but when I try to make a request from my Angular app (localhost:4200) to my Spring Boot app (localhost: 8080) I get the following error: , Create a java class "CorsFilterConfig" :
code :
@Component
public class CorsFilterConfig extends OncePerRequestFilter {

@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
    response.setHeader("Access-Control-Allow-Origin", "*");
    response.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
    response.setHeader("Access-Control-Max-Age", "3600");
    response.setHeader("Access-Control-Allow-Headers", "authorization, content-type, xsrf-token");
    response.addHeader("Access-Control-Expose-Headers", "xsrf-token");
    if ("OPTIONS".equals(request.getMethod())) {
        response.setStatus(HttpServletResponse.SC_OK);
    } else {
        filterChain.doFilter(request, response);
    }
  }
  }
@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
    httpSecurity

            .csrf().disable()
            .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()

            // don't create session
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()

            .authorizeRequests()

            // Un-secure H2 Database
            .antMatchers("/h2-console/**/**").permitAll()
            //whitelist swagger configuration
            .antMatchers(
                    "/swagger-resources/**",
                    "/api/swagger-resources/**",
                    "/api/**",
                    "/null/**",
                    "/v2/api-docs/**",
                    "/webjars/springfox-swagger-ui/**",
                    "/"
            ).permitAll()

            .anyRequest().authenticated();
    httpSecurity.cors();

    // Custom JWT based security filter
    JwtAuthorizationTokenFilter authenticationTokenFilter =
            new JwtAuthorizationTokenFilter(userDetailsService(), jwtTokenUtil, tokenHeader);
    httpSecurity.addFilterBefore(new CorsFilterConfig(), ChannelProcessingFilter.class);
    httpSecurity
            .addFilterBefore(authenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);

}
CORS problem with Angular and laravel even after setting the CORS header and server response

CORS problem with Angular and laravel even after setting the CORS header and server response


By : T Zhang
Date : October 13 2020, 07:00 PM
it fixes the issue Since you are new to angular, I suggest you to go for the solution to set up a proxy configuration. Bypass the proxy using angular-cli. In this way, the one who talks with the API server is Angular CLI server.
Create a proxy config file in the project folder: proxy.config.json with the following content.
code :
{
 "/api/*": {
    "target": "http://skewcommerce.test/api",
    "secure": false,
    "pathRewrite": {"^/api" : ""}
  }
}
ng serve  —-proxy-config proxy.conf.json
this.httpClient.get('api/data/users'));
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