Problem with link button on Chrome iOS (with ASP.NET)

Problem with link button on Chrome iOS (with ASP.NET)

Hi i'm having a problem with a link button on chrome for iOS:

my code is (in ASP .NET) : 

<asp:LinkButton ID="lnkOk" runat="server" OnClick="lnkOk_Click" data-role="button"
                CausesValidation="true" data-transition="flip" data-icon="check" data-iconpos="right"
                data-theme="a" Text="Ok" />
witch gives :

<a id="lnkOk" data-role="button" data-transition="flip" data-icon="check" data-iconpos="right" data-theme="a" href="javascript:__doPostBack(&#39;lnkOk&#39;,&#39;&#39;)"> Ok </a>

in the generated code.

This works on Safari but not on Chrome..
I enabled cookies and disabled the popup blocking,
but it's still not working.

Any idea ?