Update intermittent failure tracker

intermittent-failure-tracker/map.jinja

@@ -1,5 +1,5 @@
 {%
   set tracker = {
-    'rev': '2acbb5043eb67b9a73c2cac6bb9a03b8e9b9bd0c'
+    'rev': 'f905ecaac1b0849b0f77603a12e884e69ec16209'
   }
 %}

nginx/default

@@ -21,6 +21,10 @@ server {
   }
   location /intermittent-failure-tracker/ {
     proxy_pass http://localhost:5002/;
+    proxy_set_header Host $host;
+    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    proxy_set_header X-Scheme $scheme;
+    proxy_set_header X-Script-Name /intermittent-failure-tracker;
   }
 }