Use new restful pattern instead

cms/urls.py

@@ -131,7 +131,6 @@ urlpatterns += patterns(
 
     url(r'^logout$', 'student.views.logout_user', name='logout'),
 
-    url(r'^(?P<course_id>[^/]+)/orphan', 'contentstore.views.orphan', name='orphan')
 )
 
 # restful api
@@ -142,6 +141,7 @@ urlpatterns += patterns(
     # (?ix) == ignore case and verbose (multiline regex)
     url(r'(?ix)^course/{}$'.format(parsers.URL_RE_SOURCE), 'course_handler'),
     url(r'(?ix)^checklists/{}(/)?(?P<checklist_index>\d+)?$'.format(parsers.URL_RE_SOURCE), 'checklists_handler'),
+    url(r'(?ix)^orphan/{}$'.format(parsers.URL_RE_SOURCE), 'orphan')
 )
 
 js_info_dict = {