Hi Martin, I tried your suggestion but I'm still getting the same TypeError.
On Wed, Jan 18, 2017 at 4:55 PM, James Selvakumar <[email protected]> wrote: > Thanks Martin for the super fast reply. I'll try that out. > > On Wed, Jan 18, 2017 at 4:54 PM, Martin Grigorov <[email protected]> > wrote: > >> var wcall = Wicket.Ajax.get({ u: '${callbackUrl}'}); >> should be >> var wcall = Wicket.Ajax.get({ u: window.callbackUrl }); >> >> Martin Grigorov >> Wicket Training and Consulting >> https://twitter.com/mtgrigorov >> >> On Wed, Jan 18, 2017 at 9:51 AM, James Selvakumar <[email protected]> >> wrote: >> >> > Dear Wicket team, >> > >> > I need to make a call to a Wicket page from my JavaScript function. >> > I followed the guide Calling Wicket from Javascript >> > <https://cwiki.apache.org/confluence/display/WICKET/ >> > Calling+Wicket+from+Javascript> >> > and managed to define an ajax behavior to respond to the JavaScript >> call. >> > >> > My ajax behavior looks like this: >> > >> > > private final AbstractDefaultAjaxBehavior behave = new >> > AbstractDefaultAjaxBehavior() >> > > { >> > > protected void respond(final AjaxRequestTarget target) >> > > { >> > > LOGGER.debug("Received a request from client to get the >> > encryption key"); >> > > target.add(new Label("foo", "Yeah I was just called from >> > Javascript!")); >> > > } >> > > >> > > public void renderHead(Component component, IHeaderResponse >> response) >> > > { >> > > super.renderHead(component, response); >> > > String callbackUrl = getCallbackUrl().toString(); >> > > response.render(JavaScriptHeaderItem.forScript("var >> > callbackUrl='" + callbackUrl + "';", "values")); >> > > } >> > > }; >> > > >> > > This callback url got rendered in the page like this: >> > >> > <script id="values" type="text/javascript"> >> > > /*<![CDATA[*/ >> > > var callbackUrl='./wicket/page?0-1.IBehaviorListener.0-'; >> > > /*]]>*/ >> > > </script> >> > > >> > >> > >> > And here is my JavaScript code: >> > >> > > var wcall = Wicket.Ajax.get({ u: '${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 >> > >> > > > > -- > Thanks & regards > James Selvakumar > -- Thanks & regards James
