SSL/TLS certs inside Docker Desktop (Windows) doesn't seem to work

[e-tinus]

I'm trying to setup a LearningLocker LRS via Docker Desktop on Windows. Everything is working fine when performing a docker-compose up -d on the provided docker-compse.yml with DOCKER_TAG=74018651d4b6013a6432eb3147a02fbd4804657b inside my .env-file. This allows me to have a working LRS via http://localhost/.

However, in order to connect to the LRS by means of the TinCan.NET Nuget packages, the package code is requiring SSL.

Following the instructions in the "Production usage" -> "SSL/TLS certs" section of this repository, I however can't seem to load the provided certificates into nginx, providing the following error: [emerg] 1#1: PEM_read_bio_X509_AUX("/root/ssl/fullchain.pem") failed (SSL: error:0906D06C:PEM routines:PEM_read_bio:no start line:Expecting: TRUSTED CERTIFICATE)

Because of Docker inside Windows, I needed to change the volumes code for the nginx container a bit (apparently, I also needed to declare the folder to be mounted):
volumes:
- "/xAPI pitch/LearningLocker/ssl:/root/ssl"
- "/xAPI pitch/LearningLocker/ssl/fullchain.pem:/root/ssl/fullchain.pem:ro"
- "/xAPI pitch/LearningLocker/ssl/privkey.pem:/root/ssl/privkey.pem:ro"

removing first entry (the folder mounting) provides the following docker error:
ERROR: for learninglocker_nginx_1 Cannot start service nginx: b'OCI runtime create failed: container_linux.go:346: starting container process caused "process_linux.go:449: container init caused \\"rootfs_linux.go:58: mounting \\\\\\"/xAPI pitch/LearningLocker/ssl/fullchain.pem\\\\\\" to rootfs \\\\\\"/var/lib/docker/overlay2/d98b862d8d475f199dbb09937b8cf9c317766f6b0b6a5c15ea2f841cacf0429d/merged\\\\\\" at \\\\\\"/var/lib/docker/overlay2/d98b862d8d475f199dbb09937b8cf9c317766f6b0b6a5c15ea2f841cacf0429d/merged/root/ssl/fullchain.pem\\\\\\" caused \\\\\\"not a directory\\\\\\"\\"": unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type'

Am I doing this right, or am I missing something that could easily resolve this problem?

Thanks in advance!