title: How to use STS headers with Traefik when using Docker
body: <p>This is an issue I have been fighting with for days, but I could not find any help on stackoverflow, not even close to it. I hope to help people with similar issues in the future. Any elaboration on this question/answer is very much welcome.</p>
  
  <p>I have been trying to set <strong>STS-headers</strong> to http-requests when using <strong>Traefik</strong> as a proxy in a <strong>Docker</strong> environment. Somehow, no matter how I try to set the headers, my browser (Google Chrome) ignores them. What am I doing wrong?</p>