diff --git a/AppKit/CPWebView.j b/AppKit/CPWebView.j
index f39d9ee40..35a65860e 100644
--- a/AppKit/CPWebView.j
+++ b/AppKit/CPWebView.j
@@ -278,7 +278,11 @@ CPWebViewAppKitScrollMaxPollCount                  = 3;
 
     if (_effectiveScrollMode === CPWebViewScrollAppKit)
     {
-        var visibleRect = [_frameView visibleRect];
+        // Use `[_scrollView documentVisibleRect]` instead of `[_frameView visibleRect]`.
+        // `visibleRect` accounts for window clipping, which collapses to 0x0 if the view is 
+        // animated off-screen, resulting in an incorrectly shrunken web layout.
+        var visibleRect = [_scrollView documentVisibleRect];
+        
         [_frameView setFrameSize:CGSizeMake(CGRectGetMaxX(visibleRect), CGRectGetMaxY(visibleRect))];
 
         // try to get the document size so we can correctly set the frame