title: ng serve not working in Docker container
body: <p>I have this <a href="https://github.com/Axiol/Docker-Angular-CLI" rel="noreferrer">Docker Compose configuration</a> where I simply create a NodeJS container and install Angular CLI inside.</p>
  
  <p>After a <code>docker-compose up -d</code>, I'm able to SSH inside the container with <code>docker-compose run node bash</code>. <code>ng new</code> works perfectly but <code>ng serve</code> does not seem to work. It's launched correctly, no error in the console. But, if I visit <code>localhost</code> (ad I mapped port 4200 to 80), nothing loads.</p>
  
  <p>Am I missing something?</p>