Make sure fragment caching is only happening on nodes in the main document. Fixes...

diff --git a/src/manipulation.js b/src/manipulation.js
index 93950de..88da6de 100644 (file)
--- a/src/manipulation.js
+++ b/src/manipulation.js
@@ -384,10 +384,15 @@ function cloneCopyEvent(orig, ret) {
 }
 
 function buildFragment( args, nodes, scripts ) {
-       var fragment, cacheable, cacheresults, doc;
+       var fragment, cacheable, cacheresults,
+               doc = (nodes && nodes[0] ? nodes[0].ownerDocument || nodes[0] : document);
+
+       // Only cache "small" (1/2 KB) strings that are associated with the main document
+       // Cloning options loses the selected state, so don't cache them
+       // Also, WebKit does not clone 'checked' attributes on cloneNode, so don't cache
+       if ( args.length === 1 && typeof args[0] === "string" && args[0].length < 512 && doc === document &&
+               args[0].indexOf("<option") < 0 && (jQuery.support.checkClone || !rchecked.test( args[0] )) ) {
 
-       // webkit does not clone 'checked' attribute of radio inputs on cloneNode, so don't cache if string has a checked
-       if ( args.length === 1 && typeof args[0] === "string" && args[0].length < 512 && args[0].indexOf("<option") < 0 && (jQuery.support.checkClone || !rchecked.test( args[0] )) ) {
                cacheable = true;
                cacheresults = jQuery.fragments[ args[0] ];
                if ( cacheresults ) {
@@ -398,7 +403,6 @@ function buildFragment( args, nodes, scripts ) {
        }
 
        if ( !fragment ) {
-               doc = (nodes && nodes[0] ? nodes[0].ownerDocument || nodes[0] : document);
                fragment = doc.createDocumentFragment();
                jQuery.clean( args, doc, fragment, scripts );
        }