diff --git a/src/manipulation.js b/src/manipulation.js
index 6f0b44803..70487c139 100644
--- a/src/manipulation.js
+++ b/src/manipulation.js
@@ -1,7 +1,7 @@
 (function( jQuery ) {
 
 function createSafeFragment( document ) {
-	var list = nodeNames.split( " " ),
+	var list = nodeNames.split( "|" ),
 	safeFrag = document.createDocumentFragment();
 
 	if ( safeFrag.createElement ) {
@@ -14,8 +14,8 @@ function createSafeFragment( document ) {
 	return safeFrag;
 }
 
-var nodeNames = "abbr article aside audio canvas datalist details figcaption figure footer " +
-		"header hgroup mark meter nav output progress section summary time video",
+var nodeNames = "abbr|article|aside|audio|canvas|datalist|details|figcaption|figure|footer|" +
+		"header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",
 	rinlinejQuery = / jQuery\d+="(?:\d+|null)"/g,
 	rleadingWhitespace = /^\s+/,
 	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/ig,
@@ -24,7 +24,7 @@ var nodeNames = "abbr article aside audio canvas datalist details figcaption fig
 	rhtml = /<|&#?\w+;/,
 	rnoInnerhtml = /<(?:script|style)/i,
 	rnocache = /<(?:script|object|embed|option|style)/i,
-	rnoshimcache = new RegExp("<(?:" + nodeNames.replace(" ", "|") + ")", "i"),
+	rnoshimcache = new RegExp("<(?:" + nodeNames + ")", "i"),
 	// checked="checked" or checked
 	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
 	rscriptType = /\/(java|ecma)script/i,
@@ -468,7 +468,7 @@ jQuery.buildFragment = function( args, nodes, scripts ) {
 		doc = nodes[0].ownerDocument || nodes[0];
 	}
 
-  // Ensure that an attr object doesn't incorrectly stand in as a document object
+	// Ensure that an attr object doesn't incorrectly stand in as a document object
 	// Chrome and Firefox seem to allow this to occur and will throw exception
 	// Fixes #8950
 	if ( !doc.createDocumentFragment ) {
@@ -564,12 +564,21 @@ function findInputs( elem ) {
 	}
 }
 
+// Derived From: http://www.iecss.com/shimprove/javascript/shimprove.1-0-1.js
+function shimCloneNode( elem ) {
+	var div = document.createElement( "div" );
+	safeFragment.appendChild( div );
+
+	div.innerHTML = elem.outerHTML;
+	return div.firstChild;
+}
+
 jQuery.extend({
 	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
-		var clone = elem.cloneNode(true),
-				srcElements,
-				destElements,
-				i;
+		var srcElements,
+			destElements,
+			i,
+			clone = elem.cloneNode( true );
 
 		if ( (!jQuery.support.noCloneEvent || !jQuery.support.noCloneChecked) &&
 				(elem.nodeType === 1 || elem.nodeType === 11) && !jQuery.isXMLDoc(elem) ) {
@@ -579,10 +588,14 @@ jQuery.extend({
 			// proprietary methods to clear the events. Thanks to MooTools
 			// guys for this hotness.
 
+			// IE<=8 does not properly clone detached, unknown element nodes
+			if ( rnoshimcache.test( "<" + elem.nodeName ) ) {
+				clone = shimCloneNode( elem );
+			}
+
 			cloneFixAttributes( elem, clone );
 
-			// Using Sizzle here is crazy slow, so we use getElementsByTagName
-			// instead
+			// Using Sizzle here is crazy slow, so we use getElementsByTagName instead
 			srcElements = getAll( elem );
 			destElements = getAll( clone );
 
diff --git a/test/unit/manipulation.js b/test/unit/manipulation.js
index 560464224..1c2fc4f54 100644
--- a/test/unit/manipulation.js
+++ b/test/unit/manipulation.js
@@ -1558,3 +1558,87 @@ test("jQuery.clone - no exceptions for object elements #9587", function() {
 		ok( false, e.message );
 	}
 });
+
+test("jQuery(<tag>) & wrap[Inner/All]() handle unknown elems (#10667)", function() {
+	expect(2);
+
+	var $wraptarget = jQuery( "<div id='wrap-target'>Target</div>" ).appendTo( "#qunit-fixture" ),
+			$section = jQuery( "<section>" ).appendTo( "#qunit-fixture" );
+
+	$wraptarget.wrapAll("<aside style='background-color:green'></aside>");
+
+	notEqual( $wraptarget.parent("aside").css("background-color"), "transparent", "HTML5 elements created with wrapAll inherit styles" );
+	notEqual( $section.css("background-color"), "transparent", "HTML5 elements create with jQuery( string ) inherit styles" );
+});
+
+test("Cloned, detached HTML5 elems (#10667,10670)", function() {
+	expect(7);
+
+	var $section = jQuery( "<section>" ).appendTo( "#qunit-fixture" ),
+			$clone;
+
+	// First clone
+	$clone = $section.clone();
+
+	// Infer that the test is being run in IE<=8
+	if ( $clone[0].outerHTML && !jQuery.support.opacity ) {
+		// This branch tests cloning nodes by reading the outerHTML, used only in IE<=8
+		equal( $clone[0].outerHTML, "<section></section>", "detached clone outerHTML matches '<section></section>'" );
+	} else {
+		// This branch tests a known behaviour in modern browsers that should never fail.
+		// Included for expected test count symmetry (expecting 1)
+		equal( $clone[0].nodeName, "SECTION", "detached clone nodeName matches 'SECTION' in modern browsers" );
+	}
+
+	// Bind an event
+	$section.bind( "click", function( event ) {
+		ok( true, "clone fired event" );
+	});
+
+	// Second clone (will have an event bound)
+	$clone = $section.clone( true );
+
+	// Trigger an event from the first clone
+	$clone.trigger( "click" );
+	$clone.unbind( "click" );
+
+	// Add a child node with text to the original
+	$section.append( "<p>Hello</p>" );
+
+	// Third clone (will have child node and text)
+	$clone = $section.clone( true );
+
+	equal( $clone.find("p").text(), "Hello", "Assert text in child of clone" );
+
+	// Trigger an event from the third clone
+	$clone.trigger( "click" );
+	$clone.unbind( "click" );
+
+	// Add attributes to copy
+	$section.attr({
+		"class": "foo bar baz",
+		"title": "This is a title"
+	});
+
+	// Fourth clone (will have newly added attributes)
+	$clone = $section.clone( true );
+
+	equal( $clone.attr("class"), $section.attr("class"), "clone and element have same class attribute" );
+	equal( $clone.attr("title"), $section.attr("title"), "clone and element have same title attribute" );
+
+	// Remove the original
+	$section.remove();
+
+	// Clone the clone
+	$section = $clone.clone( true );
+
+	// Remove the clone
+	$clone.remove();
+
+	// Trigger an event from the clone of the clone
+	$section.trigger( "click" );
+
+	// Unbind any remaining events
+	$section.unbind( "click" );
+	$clone.unbind( "click" );
+});