# Supllied element not support dispatchEvent **URL:** \ **Category:** CesiumJS\ **Created:** [August 4, 2014, 5:07pm UTC](https://community.cesium.com/t/supllied-element-not-support-dispatchevent/1389 "2014-08-04T17:07:21Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![David3](https://avatars.discourse-cdn.com/v4/letter/d/f475e1/32.png) [@David3](https://community.cesium.com/u/David3)\ **Post date:** [August 4, 2014, 5:07pm UTC](https://community.cesium.com/t/supllied-element-not-support-dispatchevent/1389/1 "2014-08-04T17:07:21Z")
I am using cesium in a C# webBrowser and I get this script error. What can I do to fix it? What does the error mean? it works fine in chrome but in the c# webbrowser it does this. [![](https://lh5.googleusercontent.com/-gFQFezgFTuw/U9-9dD-t8SI/AAAAAAAABYw/bcWSD0Hc25s/s320/error.PNG)](https://lh5.googleusercontent.com/-gFQFezgFTuw/U9-9dD-t8SI/AAAAAAAABYw/bcWSD0Hc25s/s1600/error.PNG) ---
**Author:** ![Matt\_Amato](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matt_amato/32/1993_2.png) [@Matt\_Amato](https://community.cesium.com/u/Matt_Amato)\ **Post date:** [August 5, 2014, 2:01am UTC](https://community.cesium.com/t/supllied-element-not-support-dispatchevent/1389/2 "2014-08-05T02:01:30Z")
I’m unable to reproduce this using Cesium Viewer instead of a WPF app. Can you post a small example to recreate the problem? Also, what version of IE are you using. Mine is Version: 11.0.9600.17201 Update Version: 11.0.10 (KB2962872) ---
**Author:** ![David3](https://avatars.discourse-cdn.com/v4/letter/d/f475e1/32.png) [@David3](https://community.cesium.com/u/David3)\ **Post date:** [August 6, 2014, 10:31pm UTC](https://community.cesium.com/t/supllied-element-not-support-dispatchevent/1389/3 "2014-08-06T22:31:19Z")
I can’t seem to reproduce it anymore either. Thanks for your time.