HTTP Timeout not handled

[gtzinos]

Hello,

Can I handle HTTP requests which send no response ?

Example:

` var appzip = require("appmetrics-zipkin")({
host: "localhost",
port: 9411,
serviceName: "frontend",
sampleRate: 1.0
});

var express = require("express");
var app = express();

app.get("/timeout", (req, res) => {

});

var server = app.listen(9000, () => {

});

server.setTimeout(5000);

`

I call /timeout and after 5seconds the server will stop it (timeout) but the Zipkin will not handle this issue.