fix upload gif button

1 files changed, 2 insertions, 1 deletions

diff --git a/js/save.js b/js/save.js
index 44d1e4b..ec2fc6b 100644
--- a/js/save.js
+++ b/js/save.js
@@ -26,8 +26,9 @@ function saveJSON (data, filename) {
 
 function upload(uri, filename, tag){
   filename = filename || get_filename()
-  uri = uri || lastGif
+  uri = (uri && ! uri.target) ? uri : lastGif
   tag = tag || "shader"
+  
   var blob = dataUriToBlob(uri)
   uploadImage({
     blob: blob,