C# WebBrowser Ajax call

Question

I am using a WebBrowser control embedded in a C# WPF .NET4 app. Whenever I press manually the button in a form, the browser hangs on "Your request is being processed" message and nothing happens. If I do the same in full IE browser, the page is processed normally producing the results. What am I missing?

The code behind the button:

<a onclick="startSearch();" href="javascript:void(-1);" name="btnNext" class="btn floatLe noClear btnSubmit btnRight"> 
<span>Continue</span> 
</a>

question from:https://stackoverflow.com/questions/18333459/c-sharp-webbrowser-ajax-call