pjax: Upgrade to PJAX 1.8.2

js/jquery.pjax.js

@@ -263,7 +263,9 @@ function pjax(options) {
     }
 
     // Clear out any focused controls before inserting new page contents.
-    document.activeElement.blur()
+    try {
+      document.activeElement.blur()
+    } catch (e) { }
 
     if (container.title) document.title = container.title
     context.html(container.contents)