Orion with Docker

I'm trying to use Docker with the Orion server and the Ionic framework, but I can not set the header on the server to allow external sources, so when I go to the server through the application, it returns the error of no Access-Control-Allow-Origin .

My docker-compose.yml looks like this:

mongo:
  image: mongo
  command: --smallfiles
orion:
  image: fiware/orion
  links:
    - mongo
  ports:
    - "1026:1026"
  command: -dbhost mongo