TypeError: Cannot call method 'exit' of undefined

[hems]

When testing snapshooter with a local address i got an error after a time out occured.

• ERROR http://hems.local:11235/store-locator took too long to render, skipping

/usr/local/lib/node_modules/snapshooter/src/core/crawler.coffee:111 do @ph.exit ^ TypeError: Cannot call method 'exit' of undefined at Crawler.module.exports.Crawler.error (/usr/local/lib/node_modules/snapshooter/src/core/crawler.coffee:111:7) at module.exports.Crawler.keep_on_checking (/usr/local/lib/node_modules/snapshooter/src/core/crawler.coffee:94:17) at Proto.apply (/usr/local/lib/node_modules/snapshooter/node_modules/phantom/node_modules/dnode/node_modules/dnode-protocol/index.js:123:13) at Proto.handle (/usr/local/lib/node_modules/snapshooter/node_modules/phantom/node_modules/dnode/node_modules/dnode-protocol/index.js:99:19) at D.dnode.handle (/usr/local/lib/node_modules/snapshooter/node_modules/phantom/node_modules/dnode/lib/dnode.js:140:21) at D.dnode.write (/usr/local/lib/node_modules/snapshooter/node_modules/phantom/node_modules/dnode/lib/dnode.js:128:22) at SockJSConnection.ondata (stream.js:38:26) at SockJSConnection.EventEmitter.emit (events.js:88:17) at Session.didMessage (/usr/local/lib/node_modules/snapshooter/node_modules/phantom/node_modules/shoe/node_modules/sockjs/lib/transport.js:207:25) at WebSocketReceiver.didMessage (/usr/local/lib/node_modules/snapshooter/node_modules/phantom/node_modules/shoe/node_modules/sockjs/lib/trans-websocket.js:109:40)

[arboleya]

Fixed https://github.com/serpentem/snapshooter/blob/master/src/core/crawler.coffee#L111