Docker repository with httpd reverse proxy and port mapping does not work (port is duplicated)

Hi,

I encounter the same issue as described here: Access to the docker registry using none standard port fails - port value is duplicated
Using Nexus Repository 3.78.1.

I have setup a docker repository with a reverse proxy (Apache httpd), using a “port mapping” strategy as described here: Docker Repository Reverse Proxy Strategies

The port 445 redirects to the docker repository on Nexus port 8081.

It does not work and I get an error
dial tcp: lookup my.company.com:445: no such host and I see the port is duplicated in the URL: https://my.company.com:445:445/v2/token

The workaround suggested in the issue above works, but this looks like a bug as the configuration provided in the documentation does not work.

Would it be possible to fix, or at least change the documentation with a valid configuration?