SNS logs: Fatal error for invalid method

The portal regularly logs a fatal error because someone tries to POST instead of GET its root:

Jul 21 05:14:13 sns docker/ubuntu-portal-web-1/2fac427362e4[959]: F, [2024-07-21T05:14:13.728139 #1] FATAL -- : [5d0bb83e-a5d1-4088-a96e-6feae9eddcb8]   
Jul 21 05:14:13 sns docker/ubuntu-portal-web-1/2fac427362e4[959]: [5d0bb83e-a5d1-4088-a96e-6feae9eddcb8] ActionController::RoutingError (No route matches [POST] "/"):
Jul 21 05:14:13 sns docker/ubuntu-portal-web-1/2fac427362e4[959]: [5d0bb83e-a5d1-4088-a96e-6feae9eddcb8]

I think this should result in a 4xy status code, but not a fatal log message.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information