diff --git a/libraries/jquery/defunkt-jquery-pjax/jquery.pjax.js b/libraries/jquery/defunkt-jquery-pjax/jquery.pjax.js
index 77b6def1aee2dfb0aba60757d215e1aaa9778748..75be4e870869d7d58e2de71231faa588fff5b017 100644
--- a/libraries/jquery/defunkt-jquery-pjax/jquery.pjax.js
+++ b/libraries/jquery/defunkt-jquery-pjax/jquery.pjax.js
@@ -644,7 +644,7 @@ if ( $.inArray('state', $.event.props) < 0 )
 $.support.pjax =
   window.history && window.history.pushState && window.history.replaceState
   // pushState isn't reliable on iOS until 5.
-  && !navigator.userAgent.match(/((iPod|iPhone|iPad).+\bOS\s+[1-4]|WebApps\/.+CFNetwork)/)
+  && !navigator.userAgent.match(/((iPod|iPhone|iPad).+\bOS\s+[1-4]\D|WebApps\/.+CFNetwork)/)
 
 // Fall back to normalcy for older browsers.
 if ( !$.support.pjax ) {