Set custom action titles for Ajax request to improve Piwik integration

Change-Id: I38fe710584b838f6dc9215bf9ec212db1abc9877
diff --git a/t/plugin/piwik.t b/t/plugin/piwik.t
index 28c770b..5559cc6 100644
--- a/t/plugin/piwik.t
+++ b/t/plugin/piwik.t
@@ -20,6 +20,9 @@
   ->element_exists('section[name=piwik-opt-out] iframe')
   ->content_like(qr!var _paq!)
   ->content_like(qr!window\.addEventListener\('korapRequest!)
+  ->content_like(qr!setDocumentTitle!)
+  ->content_like(qr!setCustomUrl!)
+  ->content_like(qr!trackPageView!)
   ;
 
 # No embedding