Socket Hang up exception

[subnetmarco]

I've found the following error in my logs. Unfortunately I cannot provide a meaningful context, and I'm not really sure why it happened, so just in case I report it here. Feel free to close this issue if it leads to nowhere.

at createHangUpError (http.js:1360:15)
at ServerResponse.OutgoingMessage._writeRaw (http.js:507:26)
at ServerResponse.OutgoingMessage._send (http.js:476:15)
at ServerResponse.OutgoingMessage.write (http.js:749:16)
at ServerResponse.module.exports.response.write (/usr/lib/node_modules/mashape-proxy/lib/middleware/response-headers.js:15:11)
at IncomingMessage.ondata (/usr/lib/node_modules/mashape-proxy/node_modules/http-proxy/lib/node-http-proxy/http-proxy.js:294:27)
at IncomingMessage.EventEmitter.emit (events.js:96:17)
at IncomingMessage._emitData (http.js:359:10)
at HTTPParser.parserOnBody [as onBody] (http.js:123:21)
at Socket.socketOnData [as ondata] (http.js:1472:20)
at TCP.onread (net.js:404:27)

[shimondoodkin]

look on squence of events from bottom up.
seems like it is write on a closed socket

[indexzero]

The backend you are proxying to is not running.