node.js: serve a 1x1 gif

servegif.js

var connect = require('connect')

var imgdata = [
  0x47,0x49, 0x46,0x38, 0x39,0x61, 0x01,0x00, 0x01,0x00, 0x80,0x00, 0x00,0xFF, 0xFF,0xFF,
  0x00,0x00, 0x00,0x21, 0xf9,0x04, 0x04,0x00, 0x00,0x00, 0x00,0x2c, 0x00,0x00, 0x00,0x00,
  0x01,0x00, 0x01,0x00, 0x00,0x02, 0x02,0x44, 0x01,0x00, 0x3b
]
var imgbuf = new Buffer(imgdata)

var server = connect.createServer(
  connect.router(function(app){
    app.get('/the.gif',function(req,res,next){
      res.writeHead(200,{
        'Content-Type': 'image/gif',
        'Content-Length': imgdata.length,
      })
      res.end(imgbuf)
    })
  })
)

// serve the gif on http://localhost:4000/the.gif
server.listen(4000)