Yes, http (NB! Only http 1.1, not http 2) proxy servers are supported.
You can configure the
proxy by creating a "proxy.json" file besides the
"settings.json" file. The location for these are %AppData%\Roaming\birddog_connect\
It must contain a json object with a
"Host" (string) and a "Port" (int) entry. If the
"proxy.json" file contains invalid data it's getting ignored by the
daemons.
For reference the file could look like this:
{
"Host": "173.213.212.20",
"Port": 80,
}
The Host and Port should be changed to mach your proxy server.