setting the default locale url different to "/" ruins control panel

[verybigelephants]

Describe the bug I would like to prefix all urls by my locale slug. For example, english would be on a domain.com/en/... and all the austrian articles would be on domain.com/at/... i do not wish to have domain.com/ urls and would redirect them to the default locale if someone navigated to "/". however, when i set this, all the links generated in control panel stop working, because they generate /en/cp, while cp still works on url /cp.

setting "$control_panel" to 'sk/cp' doesn't work neither, as then the control panel generates links like /sk/sk/cp.

To Reproduce Steps to reproduce the behavior:

1. Fresh statamic install
2. set two locales: sk sk_SK Slovak http://my-dev-website.test/sk en en_US English http://my-dev-website.test/en
3. refresh and ruin links in your control panel

Expected behavior A working control panel that generates correct control panel links, regardless of default locale's root url

Environment details (please complete the following information):

• Statamic Version 2.11.20
• Fresh Install
• unix ubunty virtual , my local windows 10 machine, all of them
• Browser: desn't matter
• Web Server: Apache, Nginx
• PHP Version: 7.1, 7.2, 7.4.5
• Addons installed: none

[jasonvarga]

At the moment you cannot have only subdirectory based sites. The default needs to be the root.

This may be possible in v3, but not v2 unfortunately.

[verybigelephants]

could this be tagged as a feature request then?