Merge pull request #2616 from coreos-inc/fix-cl-header

Disable gzip on HEAD requests in `v2` endpoints

conf/nginx/server-base.conf.jnj

@@ -105,6 +105,10 @@ location ~ ^/v2 {
         return 404;
     }
 
+    if ($request_method = HEAD ) {
+        gzip off;
+    }
+
     # Setting ANY header clears all inherited proxy_set_header directives
     proxy_set_header X-Forwarded-For $proper_forwarded_for;
     proxy_set_header X-Forwarded-Proto $proper_scheme;