Hi @Mulen,
I think you’re right that the non latin characters are causing the issue here. To fix this, you can try using the encodeURIComponent()
function to encode your filename.
{{ encodeURIComponent("Δοκιμαστικό Κείμενο.tiff") }}
This will convert the non-Latin characters into a format that’s safe for HTTP headers which should prevent the error. Give it a try!
Here is a similar question from the past: Encode URI Component help