jquery · mgol · Nov 16, 2022 · Nov 16, 2022 · Nov 15, 2022
diff --git a/external/sizzle/dist/sizzle.js b/external/sizzle/dist/sizzle.js
@@ -1,12 +1,12 @@
 /*!
- * Sizzle CSS Selector Engine v2.3.7
+ * Sizzle CSS Selector Engine v2.3.8
  * https://sizzlejs.com/
  *
  * Copyright JS Foundation and other contributors
  * Released under the MIT license
  * https://js.foundation/
  *
- * Date: 2022-10-03
+ * Date: 2022-11-16
  */
 ( function( window ) {
 var i,
@@ -987,7 +987,14 @@ setDocument = Sizzle.setDocument = function( node ) {
 	// As in, an element does not contain itself
 	contains = hasCompare || rnative.test( docElem.contains ) ?
 		function( a, b ) {
-			var adown = a.nodeType === 9 ? a.documentElement : a,
+
+			// Support: IE <9 only
+			// IE doesn't have `contains` on `document` so we need to check for
+			// `documentElement` presence.
+			// We need to fall back to `a` when `documentElement` is missing
+			// as `ownerDocument` of elements within `<template/>` may have
+			// a null one - a default behavior of all modern browsers.
+			var adown = a.nodeType === 9 && a.documentElement || a,
 				bup = b && b.parentNode;
 			return a === bup || !!( bup && bup.nodeType === 1 && (
 				adown.contains ?

diff --git a/external/sizzle/dist/sizzle.min.js b/external/sizzle/dist/sizzle.min.js
diff --git a/external/sizzle/dist/sizzle.min.map b/external/sizzle/dist/sizzle.min.map
diff --git a/package.json b/package.json
@@ -61,7 +61,7 @@
     "raw-body": "2.3.3",
     "requirejs": "2.3.6",
     "sinon": "2.3.7",
-    "sizzle": "2.3.7",
+    "sizzle": "2.3.8",
     "strip-json-comments": "2.0.1",
     "testswarm": "1.1.2",
     "uglify-js": "3.4.7"

diff --git a/src/selector-native.js b/src/selector-native.js
@@ -196,9 +196,8 @@ jQuery.extend( {
 		return ret;
 	},
 	contains: function( a, b ) {
-		var adown = a.nodeType === 9 ? a.documentElement : a,
-			bup = b && b.parentNode;
-		return a === bup || !!( bup && bup.nodeType === 1 && adown.contains( bup ) );
+		var bup = b && b.parentNode;
+		return a === bup || !!( bup && bup.nodeType === 1 && a.contains( bup ) );
 	},
 	isXMLDoc: function( elem ) {
 		var namespace = elem.namespaceURI,

diff --git a/test/unit/manipulation.js b/test/unit/manipulation.js
@@ -2837,6 +2837,49 @@ QUnit.test( "Make sure tr is not appended to the wrong tbody (gh-3439)", functio
 	assert.strictEqual( htmlOut, htmlExpected );
 } );
 
+[ true, false ].forEach( function( adoptedCase ) {
+	QUnit[
+		typeof HTMLTemplateElement === "function" ?
+			"test" :
+			"skip"
+	]( "Manip within <template /> content moved back & forth doesn't throw - " + (
+			adoptedCase ? "explicitly adopted" : "not explicitly adopted"
+		) + " (gh-5147)",
+		function( assert ) {
+			assert.expect( 1 );
+
+			var fragment, diva, divb,
+				div = jQuery( "" +
+					"<div>\n" +
+					"	<div><div class='a'></div></div>\n" +
+					"	<div><div class='b'></div></div>\n" +
+					"</div>" +
+					"" ),
+				template = jQuery( "<template></template>" );
+
+			jQuery( "#qunit-fixture" )
+				.append( div )
+				.append( template );
+
+			fragment = template[ 0 ].content;
+			diva = div.find( ".a" );
+			divb = div.find( ".b" );
+
+			if ( adoptedCase ) {
+				document.adoptNode( fragment );
+			}
+
+			fragment.appendChild( div.children()[ 0 ] );
+			fragment.appendChild( div.children()[ 0 ] );
+
+			diva.insertBefore( divb );
+
+			assert.strictEqual( diva.siblings( ".b" ).length, 1,
+				"Insertion worked" );
+		}
+	);
+} );
+
 QUnit.test( "Make sure tags with single-character names are found (gh-4124)", function( assert ) {
 	assert.expect( 1 );