rem: if (iid.equals(Components.interfaces.nsIWebProgressListener) || iid.equals(Components.interfaces.nsISupportsWeakReference)) 
add: if (iid.equals(Components.interfaces.nsIWebProgressListener) || iid.equals(Components.interfaces.nsISupportsWeakReference) || iid.equals(Components.interfaces.nsISupports)) 
context:     QueryInterface : function(iid)    {     if (iid.equals(Components.interfaces.nsIWebProgressListener) || iid.equals(Components.interfaces.nsISupportsWeakReference))      return this;          throw Components.results.NS_NOINTERFACE;    }
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/9e3fb8324175dc5981f36ebd8298efb61dbee0f9/printPreviewProgress.js/buggy/xpfe/global/resources/content/printPreviewProgress.js