Github user justinleet commented on the issue:
https://github.com/apache/metron/pull/786
This happens intermittently for me. An error in the dev tools when hitting
`http://node1:4200/api/v1/storm/parser/start/bro` is:
```
(failed)
net::ERR_EMPTY_RESPONSE
```
The response timing is "stalled", is it possible that it simply takes too
long to come back?---
