subdomain is lost on redirect()->to()

Hello!

I love CI4, so far so good!

I set up my site to handle subdomains as languages, e.g.:

mydomain.com
de.mydomain.com
fr.mydomain.com

The problem is when I redirect, it loses the subdomain, for example :

I'm on the page de.mydomain.com
I send a form, the controller redirects with this code:

Code:

return redirect()->to('/search');

I arrive to mydomain.com/search instead of de.mydomain.com/search