diff --git a/js/xf/form.js b/js/xf/form.js
--- a/js/xf/form.js
+++ b/js/xf/form.js
@@ -1686,6 +1686,7 @@
winHeight: 0,
containerTop: 0,
containerBorderLeftWidth: 0,
+ overlayContainer: null,
topOffset: 0,
elBottom: 0,
state: 'normal',
@@ -1708,6 +1709,7 @@
}
this.container =...