Activate HSTS TOML

Hello,

I try to specify hsts on my toml configuration file, but is not working, there is my toml file:

[http.routers]

  [http.routers.test]
    rule = "Host(`my-url-test`)"
    service = "test-service"
    entryPoints = ["web"]
    middlewares = ["https_redirect"]

  # https router
  [http.routers.testwebsecure]
    rule = "Host(`my-url-test`)"
    service = "test-service"
    middlewares = ["security"]

    [http.routers.testwebsecure.tls]
      certResolver = "letsencrypt"

[http.services]

  [http.services.test-service.loadBalancer]
    [[http.services.test-service.loadBalancer.servers]]
      # Redirect all trafic to the url
      url = "http://test.lxd:80/"

[http.middlewares]
  [http.middlewares.https_redirect.redirectScheme]
    scheme = "https"
    permanent = true

  [http.middlewares.security.headers]
    forceSTSHeader = true
    stsIncludeSubdomains = true
    stsPreload = true
    stsSeconds=15552000

  [http.middlewares.security.headers.customRequestHeaders]
     X-Script-Name = "test"

Do you see an error ?

Thanks