Drag&drop of photos to other apps not like Nautilus
Mandatory: Shotwell version the issue was seen with
0.30.1 – “Celle”
The expected behaviour
Drag a photo from Shotwell to a Google Photos Album (in Chrome or Firefox), it should show the message "Drop files anywhere to upload", but nothing happens. Drag&drop should work like in Nautilus or in Eye of Gnome, where dragging the same file to the album in the browser tab offers this "drop to upload" option.
What was actually happening
In Firefox nothing. In Chrome IIRC the browser tab showing the album showed the dragged file, without uploading it.
Not sure if it's a bug or a feature request.
Is there a good reason for the current behavior to exist?