title: enabling cors on a nginx server in ElasticBeanstalk?
body: <p>Im deploying my Nodejs app to AWS Elastic Beanstalk running nginx.</p>
  
  <p>The app is essentially an api, which i can make calls to and retrieve back JSON data i.e. myapi.awselasticbeanstalk.com/api/get_stuff etc.</p>
  
  <p>Im trying to enable CORS so i can access the server from my javascript application (the client).</p>
  
  <p>As per amazon documentation I can edit or extend the nginx configuration adding a config file to the .ebextensions folder.</p>
  
  <p><strong>cors.config</strong></p>
  
  <pre><code>files:
    /etc/nginx/conf.d/cors.conf:
      mode: "000644"
      owner: root
      group: root
      content: |
          location / {
               if ($request_method = 'OPTIONS') {
                  add_header 'Access-Control-Allow-Origin' '*';
                  add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                  #
                  # Custom headers and headers various browsers *should* be OK with but aren't
                  #
                  add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
                  #
                  # Tell client that this pre-flight info is valid for 20 days
                  #
                  add_header 'Access-Control-Max-Age' 1728000;
                  add_header 'Content-Type' 'text/plain; charset=utf-8';
                  add_header 'Content-Length' 0;
                  return 204;
               }
               if ($request_method = 'POST') {
                  add_header 'Access-Control-Allow-Origin' '*';
                  add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                  add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
                  add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
               }
               if ($request_method = 'GET') {
                  add_header 'Access-Control-Allow-Origin' '*';
                  add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                  add_header 'Access-Control-Allow-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
                  add_header 'Access-Control-Expose-Headers' 'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';
               }
          }
  </code></pre>
  
  <p>but this is still not working for me.</p>