Issue with Request

// Helper to return a RunKit compatible express app (runkit.com/tonic/express-endpoint) var tonicExpress = require("@runkit/tonic/express-endpoint/1.0.0") // Provide the exports object to the tonicExpress helper var app = tonicExpress(module.exports) var request = require('request') // Middleware that prevents caching of requests app.use(function (req, res, next) { res.header('Cache-Control', 'private, no-cache, no-store, must-revalidate'); res.header('Expires', '-1'); res.header('Pragma', 'no-cache'); next() }); app.get("/", function(req, res){ var request_number = 17 request({ // To see if request is sent go to: https://requestb.in/1coqbqn1?inspect url: 'http://requestb.in/1coqbqn1', method: 'POST', json: { request_number: request_number, message: 'hello' } }, function(error, response, body) { error = (error || response.body.error) if (error){ res.send('Error: ' + JSON.stringify(error)) }else{ res.send('Request Complete') } }) // The line below has to be commented out for the above request to be sent // I don't care about the request callback() firing, I just want the request to be sent res.send('Done') }) // Call the express endpoint by going to: // https://runkit.io/gragland/58056bc6e9d9ed00130c84d5/branches/master