Support CQP in frontend

Change-Id: Ibcbd6d383c0a0eee148b369f98d266cee788cda2
diff --git a/t/intro.t b/t/intro.t
index f93ea73..fe56167 100644
--- a/t/intro.t
+++ b/t/intro.t
@@ -19,6 +19,9 @@
   ->content_unlike(qr!onload!)
   ->text_is('#link-guided-tour', 'guided tour')
   ->text_is('nav > a[href=/doc/korap/kalamar]', 'V 0.47.999')
+  ->element_exists('select#ql-field option[value=poliqarp]')
+  ->element_exists('select#ql-field option[value=cqp]')
+  ->element_exists_not('select#ql-field option[value=noliqart]')
   ;
 
 # Only routed when existing