HTTP overlay home button redirects to bind domain instead of external_hosts.http

[Luxeon-dev]

Warpgate version: 0.23.4

Setup:

Warpgate behind a reverse proxy
HTTP target with a bind domain configured (target.warpgate.example.com)
external_host in warpgate.yaml set to warpgate.example.com

Observed behavior:

When accessing a target via its bind domain (target.warpgate.example.com) and clicking the "home" button in the injected session overlay, the browser is redirected to target.warpgate.example.com/@warpgate instead of warpgate.example.com/@warpgate.
Inspecting the /api/info endpoint while on the target domain confirms that external_host returns the bind domain value of the active target, while external_hosts.http correctly returns warpgate.example.com.

Expected behavior:

The home button should redirect to warpgate.example.com/@warpgate (the main Warpgate host), regardless of the active target's bind domain.

Question:

Is this intentional? If the bind domain is meant to fully isolate the target, is there a recommended way to configure the home button to point back to the main Warpgate host?