I recently upgraded to Moodle 2.7.1 (Build: 20140714) and am now experiencing a problem with dragging and dropping folders. Namely, I can't drag and drop a folder into a topic area because an error is thrown.
In Chrome 36.0.1985.143 the error says "A required parameter (course) was missing"
In Firefox 31.0 the error says "An error occurred whilst communicating with the server"
I am able to successfully drag and drop files into the main course topic area, but not folders.
When I use Add an Activity or Resource > and choose Folder > and then try to drag the folder into the "Attachment" Area, the browser throws this error: "A required parameter (sesskey) was missing"
Any idea what is going on?