Javascript Hijacking Vulnerable Framework

Hi, 

We use HP Fortify to audit our application. We get hundreds of "Javascript Hijacking: Vulnerable Framework" warnings with regard to the <asp:ScriptManager> block  <asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>.

A similar question was asked in the past by user kaganmurat but the answer given did not resolve the issue.

Any help would much appreciated.

Thank you.