hapi's strictness about cookie headers was causing search api to return ...

...400 errors


The cookies were coming from unrelated ads code, and Hapi doesn't allow whitespace in cookie headers (or something like that, I'm not sure what all the rules are). The offending error was:

```json
{"statusCode":400,"error":"Bad Request","message":"Bad cookie value: targus.ap_seg"}
```

[Solution found here](https://github.com/hapijs/hapi/issues/1329)