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Basic authentication cache is not being cleared from the firefox browser with using JavaScript code when tries to override Uname,PWD and with response Http 401

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  • 3 have this problem

Hi, I am trying to implement logout functionality for Basic authentication for our internal application with the below script.

 function clearCache(){
  var ua= window.navigator.userAgent;
  if(ua.indexOf("MSIE") > 0){
  return true;
    url: '<%=request.getContextPath()%>/pages/PeleLogout.jsp',
    username: ' ',
    password: ' ',
    statusCode: { 401: function() { //alert('Logged Out') 
    return true;

This function is working properly when deployed in my local tomcat server, but it is not working after deploying in WebSphere6.1 server..

Modified by cor-el

Additional System Details

Installed Plug-ins

  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.6
  • VLC media player Web Plugin 2.0.2
  • Microsoft Lync 2010 Meeting Join Plug-in
  • Adobe Shockwave for Director Netscape plug-in, version 11.6
  • 4.0.50826.0
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Shockwave Flash 10.0 r45
  • Office Authorization plug-in for NPAPI browsers


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:19.0) Gecko/20100101 Firefox/19.0

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