Direct Event in Firefox Not Load Properly

[darkwalker]

Hai all,

I'm new for using ext.net and i have some problem with direct event in firefox browser. My Firefox Version is 21.0. This is my problem :

When i used direct event for my search button, i try it from IE and Chrome the search button with direct event running whell and mygrid showed the row. But in firefox when i click that search button, the pop up show and show me an Error 404 Not Found. I attach some screen capture for IE Browser and Firefox Browser.

This is my direct event click from aspx form :

<ext:Button runat="server" ID="clickSearch" Icon="Magnifier">
                                    <DirectEvents>
                                        <Click OnEvent="clickSearch_Click">
                                             <EventMask ShowMask="true" Msg="Loading..." MinDelay="500" Target="CustomTarget" 
                                             CustomTarget="gridLocationPoint" />
                                        </Click>
                                    </DirectEvents>
                                </ext:Button>

this is my screen capture from load in IE(left) and firefox(right) :



Please help my problem and thanks for your attention. :)