Expected behaviour
When navigating to any of the CMS views to edit templates, review drafts etc the admin portal should load those views without error.
Current behaviour
Navigating to resources such as "/p/admin/cms/templates" trigger a 502 Bad Gateway from an OpenResty server and it is not possible to access any of the CMS views.
Additional observations: This only happens on tenants which have a custom domain configured for the admin portal and so the traffic is in fact going through the autossl proxy that is only intended for Developer portal custom domains.