Vault + AWS LB with base_url

Hi,
I am trying to run my vault task in fargate (which is almost working) but my problem is that I use a load balancer with multiple services, all split by path /service1, /service2… so I am trying to reuse this approach with Vault having something like this:

https:lb-aws-xxxxxx.aws.amazon.com/vault/…

Is there any way to add this /vault/ base url to vault config? (without adding a nginx in between to redirect without the base_url).