How to rewrite API URL paths on the fly so that they include the IRIS instance name ?

Hello, 
A customer whose Ensemble code contains lots of hardwired API URL calls is running into issues because of the IRIS instance name insertion in the URL path since IRIS v 2024.1.

What are the best solutions to revert to the previous URL path or automatically and dynamically rewrite this path (Apache mod_rewrite ? Proxies ?). Any examples ? 

Thanks for your help, 
Bertrand Cayzac