From ab4522987bb6f8be4a2d66a5d18a6109dc06d897 Mon Sep 17 00:00:00 2001
From: "silver%warwickcompsoc.co.uk" <silver%warwickcompsoc.co.uk>
Date: Thu, 14 Sep 2006 06:09:42 +0000
Subject: [PATCH] Bug 231892 - gPrintPreviewObs should not throw for QI to
 nsISupports. r/sr=neil

---
 suite/browser/browser.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/suite/browser/browser.js b/suite/browser/browser.js
index 1322b6c417d5..d0b3d6456061 100644
--- a/suite/browser/browser.js
+++ b/suite/browser/browser.js
@@ -195,8 +195,11 @@ var gPrintPreviewObs = {
 
     QueryInterface : function(iid)
     {
-     if (iid.equals(Components.interfaces.nsIObserver) || iid.equals(Components.interfaces.nsISupportsWeakReference))
+     if (iid.equals(Components.interfaces.nsIObserver) || 
+         iid.equals(Components.interfaces.nsISupportsWeakReference) || 
+         iid.equals(Components.interfaces.nsISupports)) {
       return this;
+     }
      
      throw Components.results.NS_NOINTERFACE;
     }