res.send automatically sends res.end
res.send automatically sends res.end

See
https://github.com/visionmedia/express/blob/4.3.1/lib/response.js#L166

iQuarK/server-web-app.js,blinkboxbooks/server-web-app.js,iQuarK/server-web-app.js,blinkboxbooks/server-web-app.js