diff --git a/docs/assets/bootstrap.zip b/docs/assets/bootstrap.zip
index caf293653e..72d0da0065 100644
Binary files a/docs/assets/bootstrap.zip and b/docs/assets/bootstrap.zip differ
diff --git a/docs/assets/js/bootstrap-scrollspy.js b/docs/assets/js/bootstrap-scrollspy.js
index 5008b0fe97..487e6818b1 100644
--- a/docs/assets/js/bootstrap-scrollspy.js
+++ b/docs/assets/js/bootstrap-scrollspy.js
@@ -53,9 +53,10 @@
           .find(this.selector)
           .map(function () {
             var href = $(this).attr('href')
-            return /^#\w/.test(href)
-              && $(href).length
-              && [[ $(href).position().top, href ]]
+              , $href = /^#\w/.test(href) && $(href)
+            return $href
+              && href.length
+              && [[ $href.position().top, href ]]
           })
           .sort(function (a, b) { return a[0] - b[0] })
           .each(function () {
diff --git a/js/bootstrap-scrollspy.js b/js/bootstrap-scrollspy.js
index 5008b0fe97..487e6818b1 100644
--- a/js/bootstrap-scrollspy.js
+++ b/js/bootstrap-scrollspy.js
@@ -53,9 +53,10 @@
           .find(this.selector)
           .map(function () {
             var href = $(this).attr('href')
-            return /^#\w/.test(href)
-              && $(href).length
-              && [[ $(href).position().top, href ]]
+              , $href = /^#\w/.test(href) && $(href)
+            return $href
+              && href.length
+              && [[ $href.position().top, href ]]
           })
           .sort(function (a, b) { return a[0] - b[0] })
           .each(function () {