Update share_btn.py

share_btn.py

@@ -33,7 +33,9 @@ async () => {
             // do something with the blob;
             console.log(blob);
             
-            let videoBlob = URL.createObjectURL(blob);
+            //let videoBlob = URL.createObjectURL(blob);
+            
+            let videoBlob = new File([blob], { type: 'video/mp4' });
             console.log(videoBlob);
             return videoBlob;
           });