Angular + .net Core 3 + Azure App Service- Allow HTTP on specific route only?

I've got a project that has an interesting scenario.

I've got to deploy a SOAP service (using soap core) into the environment, and it has to allow http-- the client app consuming it is old, already compiled, and wont' work with https (i tried).

however, I want literally EVERYTHING else http only, not https.

so I'm looking for a specific route: myservice/theservice.asmx to allow HTTPS, and everything else not so much.

I'm deployed into a windows appservice.

I could split this soap service out into another app service if I had to, but I would prefer to not.

Is there any way to accomplish this?