GET requests returning 404

[sdenthumdas]

Hi,

We are using Play for the backend and using NGinx to serve requests for
static files from local.

Below is the config that we are using 

upstream backend {
    server x.x.x.x:9000;
}

server {
    listen       0.0.0.0:8082;
    server_name localhost;

    location /client {
       root /static;
       expires off;
       sendfile  off;
    }
    
    location / {
      proxy_set_header Access-Control-Allow-Origin *;
      proxy_set_header 'Access-Control-Allow-Credentials' 'true';   
      proxy_set_header 'Access-Control-Allow-Headers'
'X-Requested-With,Accept,Content-Type, Origin';
      proxy_set_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS,
PUT, DELETE, HEAD';

      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-NginX-Proxy true;

      proxy_pass http://backend;
      proxy_redirect off;
    }

}

Some requests like "GET /api/alerts" returns 404

Now here is the wierd part. When I update the configuration like below,
basically copying the same config for this specific uri path, I get 200 OK
back

upstream backend {
    server x.x.x.x:9000;
}

server {
    listen       0.0.0.0:8082;
    server_name localhost;

    location /client {
       root /static;
       expires off;
       sendfile  off;
    }
    
   location /api {
      proxy_set_header Access-Control-Allow-Origin *;
      proxy_set_header 'Access-Control-Allow-Credentials' 'true';   
      proxy_set_header 'Access-Control-Allow-Headers'
'X-Requested-With,Accept,Content-Type, Origin';
      proxy_set_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS,
PUT, DELETE, HEAD';

      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-NginX-Proxy true;

      proxy_pass http://backend;
      proxy_redirect off;
    }

    location / {
      proxy_set_header Access-Control-Allow-Origin *;
      proxy_set_header 'Access-Control-Allow-Credentials' 'true';   
      proxy_set_header 'Access-Control-Allow-Headers'
'X-Requested-With,Accept,Content-Type, Origin';
      proxy_set_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS,
PUT, DELETE, HEAD';

      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_set_header X-NginX-Proxy true;

      proxy_pass http://backend;
      proxy_redirect off;
    }

}

what could be the issue?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,256601,256601#msg-256601