Merge pull request #465 from arv/set-drag-image

Only add setDragImage if the browser supports it
googlearchive · Jul 7, 2014 · 964e80e · 964e80e
2 parents 8972d7c + 4b7999c
commit 964e80e
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/src/wrappers/DataTransfer.js b/src/wrappers/DataTransfer.js
@@ -17,8 +17,10 @@
   var OriginalDataTransferSetDragImage =
       OriginalDataTransfer.prototype.setDragImage;
 
-  OriginalDataTransfer.prototype.setDragImage = function(image, x, y) {
-    OriginalDataTransferSetDragImage.call(this, unwrap(image), x, y);
-  };
+  if (OriginalDataTransferSetDragImage) {
+    OriginalDataTransfer.prototype.setDragImage = function(image, x, y) {
+      OriginalDataTransferSetDragImage.call(this, unwrap(image), x, y);
+    };
+  }
 
 })(window.ShadowDOMPolyfill);