Possible to use running on a remote Runpod instance?

I followed the instructions in the [here](https://github.com/Interpause/auto-sd-paint-ext/wiki/Install-Guide#remote-use) to try to get the plugin working based on a remote instance of the AUTOMATIC1111 WebUI running on Runpod. I actually successfully use the plugin on a local installation, so the plugin works fine on Krita, but connecting to the remote server doesn't seem to work. I have the WebUI starting up with both --api and --listen, and I put in the public URL for accessing the remote WebUI interface into the "Backend URL" section of the Krita plugin, it says "Network error: Forbidden" under "Status" in the Krita plugin directly above the "Backend URL" field.

Am I doing something wrong in entering that URL, or perhaps there are more steps I have to take to expose the remotely running WebUI to my locally running Krita plugin? The remote install instructions say to run ipconfig on the remote machine to get its IP address, but on the Runpod instance, the IP that's returned looks like the local network IP, which is why I'm entering the URL.

The AUTOMATIC WebUI git hash is: 4b3c5bc24bffdf429c463a465763b3077fe55eb8
The auto-sd-paint-ext git hash is: 183cb961b4e964ccac4908ef67211e8c06528edf