title: TypeError: e.postMessage is not a function
body: <p>I'm trying to call window.postMesage from my java application for cross-origin communication with qlikview.</p>
  
  <p>I am getting below mentioned java scrip error when I ma usinf latest Firefox 23 or 24</p>
  
  <p><strong>TypeError: e.postMessage is not a function</strong></p>
  
  <p>But same code work for Firefox version 10.
  Can any one help? Let me know what i m missing. Is firefox has removed postMessage support or the api has been changed</p>