Remote UI doesn't load language files


I’ve deployed a remote UI (Rancher version: v2.2.8, UI Version: v2.2.94) for rancher with the only modifications being the color scheme. Basically when I replace the ui-index and point to my UI server which is nginx serving the static files, everything loads fine but the language files are being blocked by Chromes CORB policy. It looks like this:

Translation not found: locale='', key='nav.projectDropdown.label'
Translation not found: locale='', key=''
Translation not found: locale='', key='nav.srToggleDropdown'

Cross-Origin Read Blocking (CORB) blocked cross-origin response with MIME type application/json. See for more details.

This causes the words of all buttons, menus, etc… to not load properly. My CORS headers on the UI site are the most permissive they can be:

<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "">
  <site-control permitted-cross-domain-policies="all"/>
  <allow-access-from domain="*" to-ports="*"/>
  <allow-http-request-headers-from domain="*" headers="*"/>

Is there something that I’m doing wrong or is it a problem with the way the UI is built or the rancher server itself?