1 files changed, 3 insertions, 0 deletions

diff --git a/frontend/js/app.js b/frontend/js/app.js
index 4cb57e3..b68b608 100644
--- a/frontend/js/app.js
+++ b/frontend/js/app.js
@@ -164,10 +164,13 @@ function uploadFiles(files) {
 }
 
 function dragOver(event) {
+    event.stopPropagation();
     event.preventDefault();
+    event.dataTransfer.dropEffect = 'copy';
 }
 
 function drop(event) {
+    event.stopPropagation();
     event.preventDefault();
     uploadFiles(event.dataTransfer.files || []);
 }