ISSUE related to IE9, Status bar scripting with EXT JS

its happening only once in my application that ,

whenever i am trying to hit a button for ajax call and as soon as it reaches in success of ajax call, it returns a ACTIVE text in my status bar of IE9, this issue i cant see in higher versions of IE

STEPS ALREADY FOLOWED:

1. i am not mauaaly setting the status bar of IE anywher.

2. tried to override window.staus = null; if any is there in the application

3.there is no implementation of statusbar also.

please give me a solution if any,

ISSUE related to IE9, Status bar scripting with EXT JS