If you try to download a file with non ASCII characters – wontÆØÅwork.svg – you will get a 500 Internal Server Error.
By checking the logs, you will find this:
Uncaught PHP Exception InvalidArgumentException: "The filename fallback must only contain ASCII characters." at /var/www/ez-001/2016/app/bootstrap.php.cache line 1998
The error seems to come from the ResponseHeaderBag.php file:
I'm not sure why the name wasn't normalized.
- Choose any file and rename it to wontÆØÅwork.ext
- Open the admin interface, create a new file and upload wontÆØÅwork.ext
- Open that content object with the wontÆØÅwork.ext in the frontend, and try to download it.