Project import generated by Copybara.
GitOrigin-RevId: 63746295f1a5ab5a619056791995793d65529e62
diff --git a/node_modules/jquery/src/core/isAttached.js b/node_modules/jquery/src/core/isAttached.js
new file mode 100644
index 0000000..bd52519
--- /dev/null
+++ b/node_modules/jquery/src/core/isAttached.js
@@ -0,0 +1,26 @@
+define( [
+ "../core",
+ "../var/documentElement",
+ "../selector" // jQuery.contains
+], function( jQuery, documentElement ) {
+ "use strict";
+
+ var isAttached = function( elem ) {
+ return jQuery.contains( elem.ownerDocument, elem );
+ },
+ composed = { composed: true };
+
+ // Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
+ // Check attachment across shadow DOM boundaries when possible (gh-3504)
+ // Support: iOS 10.0-10.2 only
+ // Early iOS 10 versions support `attachShadow` but not `getRootNode`,
+ // leading to errors. We need to check for `getRootNode`.
+ if ( documentElement.getRootNode ) {
+ isAttached = function( elem ) {
+ return jQuery.contains( elem.ownerDocument, elem ) ||
+ elem.getRootNode( composed ) === elem.ownerDocument;
+ };
+ }
+
+ return isAttached;
+} );