[Fix] Attendence upload, system not throwing an exception for wrong input.

frappe/public/js/frappe/upload.js

@@ -166,7 +166,7 @@ frappe.upload = {
 				}
 				if(r.exc) {
 					// if no onerror, assume callback will handle errors
-					opts.onerror ? opts.onerror(r) : opts.callback(null, null, r);
+					opts.onerror ? opts.onerror(r) : opts.callback(null, r);
 					return;
 				}
 				var attachment = r.message;