Custom frontends broken

[philskents]

Version: v1.5.2.201011

When attempting to use a custom frontend I get the following error:

It looks like your Internet connection might be down! Will retry soon.
     - Check whether you can ping pagekite.net or google.com
     - Check whether `mydomain.com` can be looked up in DNS

The frontend is definitely up and responsive. The really interesting thing I see is that no connection attempt is made at all, there is no traffic to my frontend, it just fails immediately

[PVTejas]

Got the same error, but running sudo systemctl status pagekite on my frontend, I see a permission denied error, and the service quitting.

Update: running the frontend as a command normally still throws the same error