Uploading of folders using the web frontend works easily by drag&drop except with old internet explorer. However untrained users will intuitively use the “+” button for uploading and fail because at the moment only upload of single files is possible.
Suggestion: please allow to select folders as well as to select multiple files at once in the “+” file dialog. It’s easier than sending above explanation to every new user. Add a check box to upload subfolders as well.
What would you do with IE11 browsers in this case?
I would accept that drag&drop doesn’t work with IE11.
But user would get a fall back solution to upload folders with “+” button. Without this enhancement they would fail compleatly or they would have to create a new folder and upload each file individually.
No. If the browser doesn’t support folder upload it will not work with a + button either. Only way is a browser plugin in such a case which nobody wants to bother with.