From 25ac8c743a551034703e8458aae23972102a46f1 Mon Sep 17 00:00:00 2001
From: Anna Koskinen <anna@vaadin.com>
Date: Fri, 1 Feb 2013 11:34:05 +0200
Subject: Merge of (#9197) to Vaadin 7.

Fix IE memory leak when closing subwindows.

Change-Id: I7205bee96d172e84906aac1456b2523c56302d3b
---
 client/src/com/vaadin/client/ui/VWindow.java | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'client/src')

diff --git a/client/src/com/vaadin/client/ui/VWindow.java b/client/src/com/vaadin/client/ui/VWindow.java
index 56dc22908e..bd9493c761 100644
--- a/client/src/com/vaadin/client/ui/VWindow.java
+++ b/client/src/com/vaadin/client/ui/VWindow.java
@@ -458,6 +458,11 @@ public class VWindow extends VOverlay implements ShortcutActionHandlerOwner,
 
     private void hideModalityCurtain() {
         modalityCurtain.removeFromParent();
+        if (BrowserInfo.get().isIE()) {
+            // IE leaks memory in certain cases unless we release the reference
+            // (#9197)
+            modalityCurtain = null;
+        }
     }
 
     /*
-- 
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