Dear Wicket team,
I need to make a call to a Wicket page from my JavaScript function.
I followed the guide Calling Wicket from Javascript
<https://cwiki.apache.org/confluence/display/WICKET/Calling+Wicket+from+Javascript>
and managed to define an ajax behavior to respond to the JavaScript call.
My ajax behavior looks like this:
> private final AbstractDefaultAjaxBehavior behave = new
> AbstractDefaultAjaxBehavior()
> {
> protected void respond(final AjaxRequestTarget target)
> {
> LOGGER.debug("Received a request from client to get the encryption
> key");
> target.add(new Label("foo", "Yeah I was just called from
> Javascript!"));
> }
>
> public void renderHead(Component component, IHeaderResponse response)
> {
> super.renderHead(component, response);
> String callbackUrl = getCallbackUrl().toString();
> response.render(JavaScriptHeaderItem.forScript("var callbackUrl='" +
> callbackUrl + "';", "values"));
> }
> };
>
> This callback url got rendered in the page like this:
<script id="values" type="text/javascript">
> /*<![CDATA[*/
> var callbackUrl='./wicket/page?0-1.IBehaviorListener.0-';
> /*]]>*/
> </script>
>
And here is my JavaScript code:
> var wcall = Wicket.Ajax.get({ u: '${callbackUrl}'});
> alert(wcall);
>
> But I'm getting the following error in the Wicket Ajax Debug Window:
*An error occurred while executing Ajax request:TypeError: a is undefined*
>
Can someone point out what's the mistake here?
--
Thanks & regards
James
