1 files changed, 30 insertions, 0 deletions
diff --git a/wp-includes/js/zxcvbn-async.js b/wp-includes/js/zxcvbn-async.js
new file mode 100644
index 0000000..114cb5a
--- /dev/null
+++ b/wp-includes/js/zxcvbn-async.js
@@ -0,0 +1,30 @@
+/**
+ * @output wp-includes/js/zxcvbn-async.js
+ */
+
+/* global _zxcvbnSettings */
+
+/**
+ * Loads zxcvbn asynchronously by inserting an async script tag before the first
+ * script tag on the page.
+ *
+ * This makes sure zxcvbn isn't blocking loading the page as it is a big
+ * library. The source for zxcvbn is read from the _zxcvbnSettings global.
+ */
+(function() {
+  var async_load = function() {
+    var first, s;
+    s = document.createElement('script');
+    s.src = _zxcvbnSettings.src;
+    s.type = 'text/javascript';
+    s.async = true;
+    first = document.getElementsByTagName('script')[0];
+    return first.parentNode.insertBefore(s, first);
+  };
+
+  if (window.attachEvent != null) {
+    window.attachEvent('onload', async_load);
+  } else {
+    window.addEventListener('load', async_load, false);
+  }
+}).call(this);