I could reproduce the issue on my Mac. I works with any Docker version if I run Docker CE in a multipass virtual machine, but I could not pull the image called “localhost:4000/owner/myimage”, although I could push it.
It looks like it is indeed a bug in Docker Desktop and the request does not even reach the endpoint. I have tried it by running a simple HTTP server and trying to pull from and push to the HTTP server. It would not have worked obviously, but I could see the access logs. When I pished an image, I saw the access log, when I pulled the image, I didn’t see anything in the logs.
Then I tried the same in my multipass virtual machine with the same Docker CE version and I could always see something in the logs.
I am going to look for a similar issue on GitHub and report it if I can’t find any. Either way, I will get back to you with a link to an issue soon.
I could pull that image on my Mac, but there is a similar issue on GitHub. (for Mac) in Docker Desktop 4.13.0
It is stil not the link I promised 