update

src/blockly/cocoblockly.js

@@ -608,7 +608,10 @@ function progress_text(msg, percent) {
         $('.progress > .determinate').css('transition', "none");
         $('.progress > .determinate').css('width', percent);
     }
-    $('.progress > .determinate').css('transition', "width .3s linear");
+    else {
+        $('.progress > .determinate').css('transition', "width .3s linear");
+        $(".determinate").css("width", percent)
+    }
     msg == CCB.str_group.upload_fail ?
         $(".determinate").css("width", "100%") :
         '';