Static Heroku nginx buildpack conf

nginx.conf.erb

worker_processes 1;
error_log stderr;
pid nginx.pid;
daemon off;

events {
  worker_connections 768;
}

http {
  server {
    # HACK: Fixes Facebook's canvas pages by turning POST error to GET for same uri.
    error_page 405 =200 $uri;

    listen <%= ENV['PORT'] %>;
    server_name _;
    root /app;
  }
}