Masking URL from diferent domains user autentication.

Hi,

Your question is not very clear and but in general you can mask an URL based on conditions, for example:

• If a client comes (or does not come) from predefined subnet then block access to url /xyz

Without more knwoledge of your app, it's difficult to give you suggestions, however you would better challenge the devs to build a good design of your app giving each client a dedicated endpoint, folders ...etc or have a single login page that can differentiate between clients giving them authorizations accordingly