site_url takes not effect on canonical url when running in K8s

[fritzduchardt]

I am running mkdocs on K8s at version 1.6.1.

The canonical url rendered in the HTML output looks like this: <link rel="canonical" href="http://0.0.0.0:8000/index.html" />

My mkdocs.yaml looks like this:

site_name: Yummy Stuff
site_url: "https://mydomain.de/"

theme:
  name: readthedocs
docs_dir: docs

copyright: ""
use_directory_urls: false

strict: true

I am starting mkdocs like this:

mkdocs server --dev-addr "0.0.0.0:8000"
I expect the canonical url to be the value from the site_url.