cfform doesn't work inside cfwindow tag in CF 9

i am trying to use cfform tag inside cfwindow and it didn't dispaly the anythnig.

<cfwindow name="win1"  title="test" center="true" width="200"

          height="200" modal="true" initShow="true">

<cfform name="form"  action="test.cfm" method="post">

test page

</cfform>

</cfwindow>

--Thanks