diff --git a/js/components/DropTarget.js b/js/components/DropTarget.js
index 200f9015..5b732d7b 100644
--- a/js/components/DropTarget.js
+++ b/js/components/DropTarget.js
@@ -10,8 +10,8 @@ export default class DropTarget extends React.Component {
   supress(e) {
     e.stopPropagation();
     e.preventDefault();
-    e.dataTransfer.dropEffect = "copy";
-    e.dataTransfer.effectAllowed = "copyMove";
+    e.dataTransfer.dropEffect = "link";
+    e.dataTransfer.effectAllowed = "link";
   }
 
   handleDrop(e) {
diff --git a/js/index.js b/js/index.js
index 5934a83b..4cf7806a 100644
--- a/js/index.js
+++ b/js/index.js
@@ -36,6 +36,16 @@ const NOISY_ACTION_TYPES = new Set([
   SET_BAND_VALUE
 ]);
 
+function supressDragAndDrop(e) {
+  e.preventDefault();
+  e.dataTransfer.effectAllowed = "none";
+  e.dataTransfer.dropEffect = "none";
+}
+
+window.addEventListener("dragenter", supressDragAndDrop);
+window.addEventListener("dragover", supressDragAndDrop);
+window.addEventListener("drop", supressDragAndDrop);
+
 let lastActionType = null;
 
 // Filter out consecutive common actions