# Issues with WebClientUtils plugin on the application server. **URL:** \ **Category:** Classic Servoy\ **Created:** [July 30, 2015, 12:19pm UTC](https://forum.servoy.com/t/issues-with-webclientutils-plugin-on-the-application-server/18526 "2015-07-30T12:19:32Z")\ **Posts on this page:** 3\ **Page:** 1

**Author:** ![david.e](https://avatars.discourse-cdn.com/v4/letter/d/e495f1/32.png) [@david.e](https://forum.servoy.com/u/david.e)\ **Post date:** [July 30, 2015, 12:19pm UTC](https://forum.servoy.com/t/issues-with-webclientutils-plugin-on-the-application-server/18526/1 "2015-07-30T12:19:32Z")

Hi all, I’m trying to use the WebClientUtils plugin to call a Servoy function from the web client side. It works fine in developer, but fails every time when deployed to the application server. Here is the code I am using. As you can see it’s a very simple test. I create one servoy callback, then try to call it from the client side. **Make servoy callback with WebClientUtils:** ```auto var callback = plugins.WebClientUtils.generateCallbackScript(globals.client_to_servoy_TEST1, ['str'], true); var script = 'function client_to_servoy_TEST1(str){' + callback + '}'; var markup = ' \n'; ``` **Servoy function called is in scope.globals:** ```auto /** * @param {String} str * @public * @properties={typeid:24,uuid:"614190C0-19FF-461A-B6D2-C3139FE6D445"} */ function client_to_servoy_TEST1(str) { var js = 'servoy_to_client_TEST1("TEST")'; plugins.WebClientUtils.executeClientSideJS(js); } ``` **The HTML running on client:** ```auto

Client HTML

``` **Console output on client:** ```auto Uncaught ReferenceError: jQuery is not defined xxx.3.2:116 -> clientInit() xxx.3.2:116 CALLING: client_to_servoy_TEST1 xxx.3.2:116 <- clientInit() http://176.9.83.122:8080/servoy-webclient/application/s/resources/wicketevent/wicket-event.js?w:lm=1423574356 Failed to load resource: the server responded with a status of 404 (Not Found) ``` As you can see, when my client side function ‘clientInit()’ calls ‘client\_to\_servoy\_TEST1()’, and I get a wicket related error. Any idea why this is failing? PS: I am assured by our system administrator that this is not a firewall problem. ---

**Author:** ![ptalbot](https://yyz2.discourse-cdn.com/flex010/user_avatar/forum.servoy.com/ptalbot/32/4952_2.png) [@ptalbot](https://forum.servoy.com/u/ptalbot)\ **Post date:** [July 30, 2015, 10:11pm UTC](https://forum.servoy.com/t/issues-with-webclientutils-plugin-on-the-application-server/18526/2 "2015-07-30T22:11:57Z")

Make sure servoy.webclient.nice.urls is set to false in servoy-admin. The plugin is not compatible with that. ---

**Author:** ![david.e](https://avatars.discourse-cdn.com/v4/letter/d/e495f1/32.png) [@david.e](https://forum.servoy.com/u/david.e)\ **Post date:** [July 31, 2015, 10:13am UTC](https://forum.servoy.com/t/issues-with-webclientutils-plugin-on-the-application-server/18526/3 "2015-07-31T10:13:15Z")

> ptalbot: > Make sure servoy.webclient.nice.urls is set to false in servoy-admin. The plugin is not compatible with that. Thanks ptalbot, everything is now working! ![:)]( "Smile")