Argo tunnel forwarding - use complete internal URL

I am using the same internal server URL + port number (example: https://server:1234) for two different websites.
The difference between the two websites on the same server is made after the port number ,
example:
https://server:1234/aaaa
https://server:1234/bbbb

How can the full URL’s (including aaaa , bbbb ) be used in Argo tunneling ?