gistfile1

diff --git a/AppKit/Platform/DOM/CPPlatform.j b/AppKit/Platform/DOM/CPPlatform.j
index 47af4b1..60ac591 100644
--- a/AppKit/Platform/DOM/CPPlatform.j
+++ b/AppKit/Platform/DOM/CPPlatform.j
@@ -21,6 +21,7 @@
  */
 
 CPPlatformDidClearBodyElementNotification   = @"CPPlatformDidClearBodyElementNotification";
+CPPlatformWillClearBodyElementNotification  = @"CPPlatformWillClearBodyElementNotification";
 
 var screenNeedsInitialization   = NO,
     mainBodyElement = nil;
@@ -91,6 +92,10 @@ var screenNeedsInitialization   = NO,
 
     screenNeedsInitialization = NO;
 
+    [[CPNotificationCenter defaultCenter]
+        postNotificationName:CPPlatformWillClearBodyElementNotification
+                      object:self];
+
     var bodyElement = [self mainBodyElement];
 
     // Get rid of any of the original contents of the page.
diff --git a/AppKit/Platform/DOM/CPPlatformString.j b/AppKit/Platform/DOM/CPPlatformString.j
index e0431b0..381fe6a 100644
--- a/AppKit/Platform/DOM/CPPlatformString.j
+++ b/AppKit/Platform/DOM/CPPlatformString.j
@@ -22,8 +22,8 @@
 
 #include "../CoreGraphics/CGGeometry.h"
 
-
 var DOMSpanElement      = nil,
+    DOMIFrameElement    = nil,
     DefaultFont         = nil;
 
 @implementation CPPlatformString : CPBasePlatformString
@@ -39,11 +39,17 @@ var DOMSpanElement      = nil,
            selector:@selector(platformDidClearBodyElement:)
                name:CPPlatformDidClearBodyElementNotification
              object:CPPlatform];
+
+    [[CPNotificationCenter defaultCenter]
+        addObserver:self
+           selector:@selector(platformWillClearBodyElement:)
+               name:CPPlatformWillClearBodyElementNotification
+             object:CPPlatform];
 }
 
 + (void)createDOMElements
 {
-    var DOMIFrameElement = document.createElement("iframe");
+    DOMIFrameElement = document.createElement("iframe");
     // necessary for Safari caching bug:
     DOMIFrameElement.name = "iframe_" + FLOOR(RAND() * 10000);
     DOMIFrameElement.style.position = "absolute";
@@ -80,11 +86,24 @@ var DOMSpanElement      = nil,
     DOMDivElement.appendChild(DOMSpanElement);
 }
 
++ (void)removeDOMElements
+{
+    var bodyElement = [CPPlatform mainBodyElement];
+    bodyElement.removeChild(DOMIFrameElement);
+    DOMSpanElement = nil;
+    DOMIFrameElement = nil;
+}
+
 + (void)platformDidClearBodyElement:(CPNotification)aNotification
 {
     [self createDOMElements];
 }
 
++ (void)platformWillClearBodyElement:(CPNotification)aNotification
+{
+    [self removeDOMElements];
+}
+
 + (CGSize)sizeOfString:(CPString)aString withFont:(CPFont)aFont forWidth:(float)aWidth
 {
     if (!aFont)
@@ -95,39 +114,43 @@ var DOMSpanElement      = nil,
         aFont = DefaultFont;
     }
 
+    var shouldRemove = !DOMSpanElement;
+    if (shouldRemove)
+        [self createDOMElements];
+
     var style = DOMSpanElement.style;
 
-    if (aWidth === NULL)
+    if (!aWidth)
     {
         style.width = "";
         style.whiteSpace = "pre";
     }
-    
     else
     {
         style.width = ROUND(aWidth) + "px";
-        
-        if (document.attachEvent)
-            style.wordWrap = "break-word";
-        
-        else
-        {
-            style.whiteSpace = "-o-pre-wrap";
-            style.whiteSpace = "-pre-wrap";
-            style.whiteSpace = "-moz-pre-wrap";
-            style.whiteSpace = "pre-wrap";
-        }
+        style.wordWrap = "break-word";
+        style.whiteSpace = "-o-pre-wrap";
+        style.whiteSpace = "-pre-wrap";
+        style.whiteSpace = "-moz-pre-wrap";
+        style.whiteSpace = "pre-wrap";
     }
 
     style.font = [aFont cssString];
 
     if (CPFeatureIsCompatible(CPJavascriptInnerTextFeature))
         DOMSpanElement.innerText = aString;
-
     else if (CPFeatureIsCompatible(CPJavascriptTextContentFeature))
         DOMSpanElement.textContent = aString;
 
-    return _CGSizeMake(DOMSpanElement.clientWidth, DOMSpanElement.clientHeight);
+    if (DOMSpanElement.clientWidth === 0 || DOMSpanElement.clientHeight === 0)
+    {alert('returning size 0'); debugger;}
+
+    var size = _CGSizeMake(DOMSpanElement.clientWidth, DOMSpanElement.clientHeight);
+
+    if (shouldRemove)
+        [self removeDOMElements];
+
+    return size;
 }
 
 @end