[Bug Report] "Not Found: undefined" when trying to log in

[Betonhaus]

Describe the bug When attempting to log in to the page, a red error message labelled "Not Found: undefined" pops up and login fails

To Reproduce Steps to reproduce the behavior: go to the page when it's proxied to /yacht on the server

Expected behavior login completes and application is useable

Screenshots If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Linux Mint
• Browser Edge
• Yacht Version v0.0.7-alpha-2023-01-12--05

Additional context reversed proxied through Nginx Proxy Manger, with the following custom code:

location /yacht/ {
    proxy_pass http://yacht:8000/;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
}