Azure API App "No ApiApp installed that can handle forward request to https://my.customdomain.com"

I added a custom domain name for an Azure API App (actually on the underlying API app host).

The `https://microsoft-apiappXXXXXXXX.azurewebsites.net/ address still works but the custom domain yields the following error in the browser:

<Error>
  <Message>
     No ApiApp installed that can handle forward request to https://my.customdomain.com/
   </Message>
</Error>

I've configured a custom SSL certificate, but with or without it, I get the same issue (minus the SSL warning when the custom SSL is not configured). HTTP access just issues a 302 Redirect to HTTPS.

Any ideas?

Solution

Unfortunately this is a known limitation of the preview bits when using custom domains. When I replied on the original thread of yours I didn't realize that, my apologies.

It's on our backlog and the team is working hard to get this implemented. It's a very common scenario so I don't think it will take much time (maybe a couple of weeks if everything goes ok) but I don't have an exact ETA to share at this point. I'll update this thread once it's live, it shouldn't be long.

You can find a list of known issues here, we will update it to include this as well.