db.exists() is broken: with "keep-alive" and HEAD method callback is not invoked.

[shakiba]

db.exists() sends "keep-alive" HEAD requests, but at least for me (io.js v1.0.3) it doesn't works and db.exists() callback is never invoked. Following code reproduces this issue: "GET keep-alive", "GET close" and "HEAD close" are called but "HEAD keep-alive" is not called.

var http = require('http');
var request = require('request');

var server = http.createServer(function(request, response) {
  response.writeHead(200, {
    "Content-Type" : "text/plain"
  });
  response.end("Hello World\n");
});

server.listen(8596);

new (request.Request)({
  uri : 'http://localhost:8596/',
  method : 'HEAD',
  headers : {
    Connection : 'keep-alive'
  },
  callback : function(a, b, c) {
    console.log('HEAD keep-alive');
  }
});

new (request.Request)({
  uri : 'http://localhost:8596/',
  method : 'GET',
  headers : {
    Connection : 'keep-alive'
  },
  callback : function(a, b, c) {
    console.log('GET keep-alive');
  }
});

new (request.Request)({
  uri : 'http://localhost:8596/',
  method : 'HEAD',
  callback : function(a, b, c) {
    console.log('HEAD close');
  }
});

new (request.Request)({
  uri : 'http://localhost:8596/',
  method : 'GET',
  callback : function(a, b, c) {
    console.log('GET close');
  }
});

[thomasmodeneis]

is this issue still relevant ?