--- a/viewer.py	Thu Aug 11 20:49:37 2016 +0800
+++ b/viewer.py	Thu Aug 11 23:21:04 2016 +0800
@@ -25,7 +25,7 @@
         handlers = [
             (r'/', IndexHandler),
             (project_re, ProjectHandler),
-            (project_re + r'/([\d]+|latest)(?:/(raw))?', CheckHandler),
+            (project_re + r'/(\d+|latest)(?:/(raw))?', CheckHandler),
             (project_re + r'/status\.svg', StatusHandler),
             (r'.*', ErrorHandler, {'status_code': 404})
         ]