Thumbnails

Hi again, I fixed that issue, but I have one more question that I couldn't find answer for.

filesDownload or filesGetThumbnail returns object with fileBinary property. I can't in any way I tried convert that data to image.

Most of the time I get this exception

DOMException: Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range.

Unless I do this

...
img.src='data:image/jpeg;base64,' + window.btoa(unescape(encodeURIComponent(response.data.fileBinary)));
...

But again it is unreadable

And here is screenshot of original fileBinary data and converted data with code above