CORS error while making post request to logstash

Question

I have configured Logstash 1.5.2 to consume http input on a linux machine.

This is my logstash input configuration:

input {
        http {
                host => "10.x.x.120"
                port => "8500"
        }
}

I can send data to logstash by using curl -XPOST from the linux machine.

But when I make a $http.post(url, postData); request from my angularJS application I get the following error:

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource

I have hosted my application on the same linux machine using nginx within a docker container. I have tried to configure nginx to allow CORS by adding the following lines to the nginx.conf:

    add_header 'Access-Control-Allow-Origin' '*';
    add_header 'Access-Control-Allow-Credentials' 'true';
    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';

But still the error persists.

Also when I hit http://10.x.x.120:8500 from my browser address bar I get 'ok'.

Any help is highly appreciated. Thanks.

Answer 1

This could be a solution depending on your setup of Logstash in our case we use the http plugin to accept http calls. The http plugin plugin supports the following configuration options:

http {
    response_headers {
        "Content-Type" => "application/x-www-form-urlencoded",
        "Access-Control-Allow-Origin" => "*",
    }
}