Visual Editor not working on localhost

### Describe the Bug

I have installed Directus with the command line instruction presented on the Directus startpage:
npx directus-template-cli@latest init

Setup worked, but when going to the Visual Editor causes an error:
localhost refused to connect

The setup used Directus v11.7.[something], I updated it to 11.9.3. Same behaviour.

Here is a video: https://dl.rowild.at/directus-11-visual-eidtor-not-working.mp4

The link in the address bar takes on a strange format and something is looking at port 3000, which is not active

Reproduced in Firefox and Vivaldi. Chile I use AddBlockers in Chrome (which I turned off), there were none neither in Firefox nor in VIvaldi.

### To Reproduce

Just install Directus as per the command line on the Directus start page.

### Directus Version

v11.9.3

### Hosting Strategy

Self-Hosted (Docker Image)

### Database

PostGres