allowedHostnames not passed to link_tag

I am running CI 4.3.3
I have multiple hostnames defined in Config\App.php :

PHP Code:

public array $allowedHostnames = ['host1','host2','host3']; 


And I have a "fake" base URL defined in my .env (as I would like to keep it portable transparently) :

PHP Code:

app.baseURL = 'http://fake/' 


If I call base_url() or site_url(), everything works fine. It takes the relevant allowedHostname into account.
If I call link_tag() or script_tag(), only 'http://xxx/' into taken into account.

Is there a way to fix this?

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