Mac Client will always return as "Unauthorized" when using custom server.session_cookie_name config

[Lyfv]

Describe the Bug

Recently I discover that I am able to connect with pangolin client after I reset my changes for the server.session_cookie_name to be the default p_session_token, I tried it after checking the code on APIClient.swift, that is has a line of private let sessionCookieName = "p_session_token" and without good knowledge of Swift I assume it is hardcoded.

Environment

• OS Type & Version: MacOS 26.4
• Pangolin Version: 1.16.2
• Gerbil Version: 1.3.1
• Traefik Version: 3.6.12
• Newt Version: 1.11.0
• Client Version: 0.70

To Reproduce

• Selfhosted
• Set custom value for server.session_cookie_name https://docs.pangolin.net/self-host/advanced/config-file#param-session-cookie-name
• try to connect with the pangolin mac client
• After authentication success, there will be an alert says "Unauthorized"
• Remove the custom value
• restart pangolin server
• reconnect, with the client then everythings is working

Expected Behavior

custom server.session_cookie_name should be use on APIClient class private let sessionCookieName = "p_session_token" line 48

[Lyfv]

[DannyBoyKN]

Got the latest 0.8.0 of both, macOS and iOS, installed today and am getting the same error for both GUIs.
I also have the server.session_cookie_name to be the default p_session_token in my pangolin config.yml since the very beginning, somewhere 1.12, but until now had no issue in connecting and was using it frequently.
The pangolin logs (netcup VPS docker container) doesn't show anything particular. I also removed and reinstalled on both clients with no luck.
Could you please help solving this ?

[DannyBoyKN]

Well, downloaded and installed version 0.7.0 of the macOS client and getting now the same error.
Tried installing and login with pangolin cli - macOS too - gives this:

❯ pangolin login
failed to start device web auth: failed to unmarshal response: invalid character '<' looking for beginning of value