publish muk_web_utils - 12.0

6 years ago · ca167898a5
1 changed files with 3 additions and 1 deletions
--- a/muk_web_utils/static/src/js/core/dropzone.js
+++ b/muk_web_utils/static/src/js/core/dropzone.js
@ -95,7 +95,9 @@ var FileDropzoneMixin = _.extend({}, DropzoneMixin, {
 		return window.File && window.FileReader && window.FileList && window.Blob;
 	},
 	_handleDrag: function(event) {
-		event.originalEvent.dataTransfer.dropEffect = 'copy';
+	    if(event.originalEvent.dataTransfer) {
+	    	event.originalEvent.dataTransfer.dropEffect = 'copy';
+    	}
 	},
 });