Storage returns blue box on empty String

[s3ppo]

🐛 Bug Report

Storage returns blue box on query empty String

https://mydomain/v1/storage/files//preview?project=myprojectid&mode=admin
this returns a filelist instead of an error (after files there is an empty fileid)

Have you spent some time to check if this issue has been raised before?

Yes

To Reproduce

example from Flutter:

String fileid = "";
Response result = await storage.getFilePreview(fileId: fileid, height: 100, width: 100);
print(result.data.isEmpty); //false

Expected behavior

Should return an exception or minimum an empty Uint8List.

Actual Behavior

returns an Uint8List with data (a blue box)

Your Environment

Appwrite 0.10.2

[ditsuke]

I want to give fixing this a go! As I'm new to Appwrite and don't want to rush into it, if a maintainer can confirm this is not expected behavior and probably give me a pointer I'll start working on a fix.