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-rw-r--r--src/effects.js3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/effects.js b/src/effects.js
index 926b40b54..6716e616a 100644
--- a/src/effects.js
+++ b/src/effects.js
@@ -38,7 +38,8 @@ jQuery.fn.extend({
// Set elements which have been overridden with display: none
// in a stylesheet to whatever the default browser style is
// for such an element
- if ( display === "" && jQuery.css(elem, "display") === "none" ) {
+ if ( (display === "" && jQuery.css(elem, "display") === "none") ||
+ !jQuery.contains( elem.ownerDocument.documentElement, elem ) ) {
jQuery._data( elem, "olddisplay", defaultDisplay(elem.nodeName) );
}
}